Which AR-15 Barrel Length: 16, 18, or 20"?
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- Опубликовано: 24 июл 2024
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It cracks me up how people complain about a 20" AR. I have carried them 20 miles with a rucksack and cleared buildings. If they are too heavy for you at the range, your rifle is the least of your issues.
Back Country Nomad I love my 20"...with the A1 stock, it's shockingly handy in vehicles and thick brush. I carried mine this weekend on state defense force maneuvers- a mile or so through some of the thickest brush I've seen in Missouri outside of secondary-growth stuff that was logged or mined. Weight is nowhere near a problem, and the balance is perfect!
I'm a younger shooter (about to turn 21 December) and I'm actually used to the weight of the older, heavier "battle rifles;" my first gun was a Norinco SKS at age 13, followed the next year by a Mosin Nagant 91/30. Then, with my own money I've since bought an AR10 and an HK91, both of which are 8.5lbs minimum without attachments. It's changed my perspective some, such as my surprise as to how light the M1 Garand (love that rifle) felt to me when I first held it when everyone claims how heavy it is. I'm currently looking for a good 'ole 20" AR15 to supplement my experience and my fun :) Have a good one y'all
lol 4 extra inches of metal tube is kicking their ass.
If we all had an extra 4 inches of tube wed be kicking anyones asses
Schizzultz depends on the rail system.. the 20 inch with the standard a1 a2 handguard is light.. but when ppl get those 18 to 20 inch free floats start to become heavy
With AK you don't choose barrel length. Barrel length choose you.
in mother russia weapon chooses man that is why ak is reliable as person
I mean...you COULD buy a Saiga with the 20something barrel. I've seen impressive groups even with garbage ammo out of those. (Not that folks are choosing AK pattern rifles for their accuracy.)
I literally just bought an AK... This is 100% correct haha
SKS give you two options. The 20" and the not 20". lol
An AK doesn’t have bad headspace, it just decides to remove itself from an unworthy wielder.
Hi, I'm Chris Pontius & this is WILD BOYZ
Lmfao
So right on bra!
I'm dying 😂😂😂
I just got it.
Oooh shit I wondered what he's been up to!!! It's a conspiracy!!!
Something about a 20" AR with an A2 stock makes my pants tight.
+Cole Hart It looks just an M-16!
+TheeBudGuru You're joking right? *I wish there was a sarcasm button*
+Cole Hart To each their own! We had tons of issues with our full length M16A4s in Iraq. The most common was the difficulty in using them while in mounted operations or in CQB. A simple fix would have been to issue collapsible stocks but that never happened! Reliability was average but you had to stay on top of the maintenance routine. Most of the issues we had were with older beat to shit M16A2s. Mostly due to parts wear and Marines fucking them up during training.
+bagel boy im trying to learn about guns and how i want them before i get one i want one i am thinking about 1 pistol 1 rifle to start its more for home defense and hunting deer u know simple stuff i heard about building one and this is how i ended up here so would a 7.61x35 with an 18 inch be enough? any suggestions will be welcomed
+Devon Haput Sounds like you're entering more of the AK territory there with the 7.62x39. There are a lot of great and even decently accurate enough AKs out there to choose from. It'll certainly take any deer you come up against, whether they be two legged or four.
Another helpful video from Reid Henrichs. No bluster, no theatrical masculine posturing -- just useful information presented by a genuine expert. Real good stuff..
+Ricky Pastille Thank you Ricky. I am glad you get value from the videos. It's good to give something back to folks. If I can't help people in class, at least they can get help from the channel.
+Reid Henrichs I'm with you on that one Ricky Reid is the best all out american I think I've ever heard speak. And that's not even about firearms. He gets down to the nitty gritty. And he doesn't make you feel stupid. Thanks Reid "I'll see you on the ridge"
+Reid Henrichs I used to not fugg with your vids but subscribed to support. Your presentation is , now professional & I even watch your vids instead of that other guys. I won't say names but, follow my eyes : ~~~~> QQ'ing @ James Yeager
+Reid Henrichs IMHO, the best thing about the 16" is that it's the shortest without NFA bullshit.
Otherwise, for home defense, 16" is kind of long.
16" should be mid-length gas system (my preference). Less gas, less pressure.
For home defense, a super short .300 BLK would be sweet, but a 12.5 5.56 would be good.
I like the 16" for all around. For long range, I'd just get a .308, so no long barrel 5.56 for me.
Awesome channel, by the way.
+El Jericho 14.5 with a pinned fh is pretty handy indoors, no nfa needed, just perm attach the fh and your gtg
I love them all :D
Indeed
@@85mackey1
Indeed indeed
BUY EM ALL!
@@DEATH_TO_TYRANTS
Indeed indeed indeed
@@Illbebacc
Why did yall blow up the at&t in Nashville?
I currently have a 16" but I want a 18" and 20"...guns are like Pokemon! Gotta have em all!
Me too. Guns are like a drug habit. Always wanting more. Just can't get enough of them.
@@TexHoss1 ffls are gun dealers 😂
@@Portuguese-linguicaYeah I know so why are you saying this?
@@TexHoss1 apparently that went over your head but it's all cool
@@Portuguese-linguicaMust have. I reckon if it was a bullet it missed, huh, lol
I watched this video a year ago, and now have all three of these rifle lengths.
sam A nice
sam A k
So which one do you like best?
Just got the 16" & the 18". Which of your 3 do you prefer?
just get all 3. problem solved
Mark 1 lower, three uppers lol
POCKET SAND
Cory Rowe you need a nice tuned rifle with a rifled length gas system, use a rifle buffer, and tube, or play around different weighted carbine buffers, I've never been a fan of adjustable gas blocks in ARs
and an ar pistol
what chloe said. 3 uppers. save that money
I'm a 20" AR guy. I enjoy the rifle length gas system the most and I found the 20" barrel delivers the best accuracy with heavy otm's at longer ranges. I enjoy my 10.5" AR pistol a lot and it does give me comfort knowing I can keep it as a truck gun should I ever find myself in that situation where a pistol won't cut it. Plus I cannot count the number of critters that don't like my 20" AR, especially when they get slapped hard with a 77 grain pill at a good distance away, lol.
Barrel length has nothing to do with accuracy, maybe your 20” barrels have been more accurate but it being longer is not the reason why. In fact it’s believed 20” barrels are LESS accurate due to more barrel vibration because of its length
@@Melj945 lol, please stop.
Love the 16 inch with a mid length gas system. I've tried every configuration ar wise and that's my favorite set up. My favorite to shoot is the 20 inch though.
I got the 16 in with mid length. It’s a real nice setup in that combo
Most of my rifles are 16"... but that's in part because it helps weight save, which my tiny t-rex arms appreciate lol Gave your video a like :]
FateofDestinee where did u go?
@@BigRed-oi6ky thinking the same thing.
That's ok if you don't mind sacrificing capability.I guess.
Miss you girl.
Get stronger.
The way I was trained in 2004 to clear buildings indoors was to have an almost straight down alert position with the barrel (not flagging your own foot) and when pieing corners and such to take the stock out of your shoulder. The .223 or 5.56 in a 20" configuration doesn't kick so hard that you need that firm press with the stock to keep it under control. I too like the 20" better than the others, with a carry handle too. Iron Sights all the way.
Can you go over how you hold it properly aorund corner without stock
@@brandondang7156 hold the pistol grip in your hand and let the stock sit on top of your elbow, doing this you can essentially use it like a folding stock, though the stock is still there of course. This can allow you to place the side of the rifle against a wall or corner and lean out with just your head and hand, exposing a minimal amount of your body to fire.
@@TresTrefusis oh I think I get it, do you keep a sight picture (I’m not sure if that’s right terminology, are you lining up your sights where you’re looking around the corner) while doing this or no?.
Also are vertical grips or any other accessories a good idea
I was a Small Arms Repairer in the Army for fourteen years. I too like the 20" barrel and full length buffer. The most reliable of the three.
I think the carbine has gotten so popular many younger people don't even consider anything but a 14.5 or 16" barrel. When people try my 20" they are stunned at how nice it shoots.
I am a woman & weight in the barrel is an issue so my carbine is my primary but, if you are into the AR, you must have a full length rifle too. They shoot so nice & yes, an extra 400 fps really does make a difference.
And with complete uppers $200-$400 and sent to your door, there's no excuse to not have a 20".
+thgreatandini Where do you find complete uppers for even $200-300? No bcg and charging handles is not a complete upper. Thanks.
+Dan Stra you can find them on fantasy island, along with plasma rounds! 😀 Seriously, who knows anymore. I have a 16 inch barrel and thought of getting just a 18 inch upper and found the cost is over $400 or there about. Decided just to get another rifle with the 18 inch barrel.
D Slag PSA has a 20" upper with the good FN barrel for $299. Of course after buying a BCG & charging handle you would be a little over $400 but not to much over.
How do you like that 18"? I have several stripped upper receivers & parts to assemble them & I was thinking of getting an 18" barrel with a mid length gas system & building an 18" upper.
I was hoping thgreatandini had some secret place that he was getting complete uppers in the $200-300 range! LOL. I have a number of 16" uppers (Del-ton, JSE and DPMS) that were around the $400 range and a RRA 18" varmint upper that I picked up 2nd hand for about $300 without the bcg. I have a lower with a PSA A2 stock I'd like to put a nice 20" upper on. I'd love to pick up the PSA upper but they are a$$holes and will not sell any AR parts to people who live in CT. It's totally legal to have a preban AR and there are lots of people still selling lowers but PSA will not even sell a part never mind an assembled upper to those of us stuck in this $hit state.
Remember that barrel profile is a big player in how well a rifle balances. A 20" pencil barrel feels better than many carbines, while increasing muzzle velocity and sigbt radius. Eugene Stoner's original 20" lightweight rifle has a lot going for it; don't forget this.
I like an 18" barrel with a rifle length gas system. Works for me. Good video. Thanks for putting it out there
I truly enjoyed this video, and although in the service I was originally trained with the 20", my preference has been the 18" as an all-around, multi-purpose length. A side note, I give kudos to both you and The Patriot Nurse for your video concerning calling your representatives.
"Know your rifle before you trust your rifle." Best advice ever!
Great info Reid. I really like it when say that my preference, but you must happy with your choice. not expecting everyone to need equipment of a merc. your attitude toward presenting facts and leaving flexible choices is really putting your presentations over the top. two thumbs up.
Reid, I would (and I'm sure many others) really appreciate a video discussing the noise concern of using a rifle indoors, solutions, pros/cons. Thanks for all you do
The 20 inch was a standard issue for me in basic. Accurate as hell. Thank you for the video bro.
Way back in the old days I was a 11B primary, 64C secondary and when driving the 5 ton we kept the M16’s on the window locking nut. It was grate until you needed the rifle quickly. We always asked why couldn’t the barrels be shorter? Your right though the 20” barrel shot soft and was accurate at distance, I shot expert all the time I was in.
Great video Reid!
The reason the extra length added to the 20 is the best velocity and hitting power is because 1, it peaks out at that length and so 2, the extra couple inches puts drag on it
One of my favorite channels. informative, no bs, Reid is a class act.
The lighting did make this video a little less enjoyable however. I think that just turning the camera a different direction would have been better.
Other than that fantastic as usual.
I just built a 18" AR, stainless .224 Wylde barrel with a rifle-length gas system. It's really the best "combination" of everything wanted between the lengths. Great video btw.
Great advice. I’m going with an 18” mid length BCM. I think that’ll be the ideal situation for what will be my first and probably my only rifle for a little while until I can put some more money together for another one.
Nice video man. I like your style. Just straight forward, laid back, and informative.
in the beginning of an AR build and u just helped tremendously thank u great channel please keep it up!!!!!
my first ar build, i went with a 20" barrel like the one in this video. i wanted it to look like an m16.
I run a midlength gas system on a 16" barrel, makes for better recoil follow up shot and reliability. the midlength gas length was designed to be used for the 16"-18" barrel. The carbine length was designed to be used on the 14.5" M4 for the cycling rate increase in full auto, but has a much more felt recoil. There's honestly no need to run a carbine length gas system on a 16" semiautomatic rifle because you will never get the cycle rate in semiautomatic you will with a fully automatic rifle, you might as well go with the longer gas system on a midlength for better recoil, and reliability. Manufacturers started using carbine length gas system on ARs because people started asking for it because "That's what the military uses" but in fact are putting themselves at a disadvantage with a semiautomatic rifle by increasing the recoil using the shorter gas system. a nice midlength gas system 16" barrel with a good comp make a huge difference in recoil and follow up shots. the only difference is a few grams of weight from the little bit longer gas tube and it's honestly negligible. A midlength gas system is ideal on a 16" rifle IMO. Maybe suggest it to Patriot Nurse, she might like it better.
I too have a 16 inch barrel with a midlength gas system. My favorite part? I can still mount a bayonet nice and solid. No rattle
Mid length is mainly for 16 inch. Rifle length for 18 inch is no problem.
18” rifle length is the way to go.
@@asdfghjk2933 Yes but rifle length can even work with 16 inch ruclips.net/video/7Md6JzNT_qk/видео.html
@@Gieszkanne True, but I imagine that setup would be a bit "temperamental".
Thanks man, you've DEFINITELY answered a question I've been faced with!!! Good video!!
extremely usefull info... really made me rethink my last build and shooting for different results on my next! thank you so much
FYI for those that dont know; you can get a 16" up to a mid length amd an 18" up to a rifle length gas system, reliably. you gan also throw on an adjustable gas block, just tune it right and they will shoot as soft as that 20".
the 20 inch barrel also has the ability to penetrate level 3 ar 500 armor and have lethal results which is always a plus incase were fighting armored foe
He's not lying lol...XM193 will go straight through level 3 @ like 10 yards lol
Robert Keller I need to stipulate that this is only true inside 50 yards or so, but it's still a great asset to have! There's a reason I primarily run a 20" rifle with XM193 and other high-velocity rounds.
Robert Keller right stay safe
16 inch barrel can do it as well with the right ammo.
yea, at shotgun distances...just use a fucking shotgun, and shoot the pelvic area. instant incapacitation.
Great info Reid...I run an 18" in Rifle length with 1/7 twist...Love it...
I value your knowledge.. thanks for always getting the info out one way or another. hope to take a class very soon
Waiting on a lower build kit to go on sale at PSA and I too will have 3 AR'S laying around the house. 556,300BO and x39. Never thought I'd own an AR but building them gets addictive.
I think the 20" is the most effective because the .223 relies on velocity to be effective.
Great Video, The standard that Ive been taught is the 5.56 needs two full reveloutions to stabalize bullet. thats the reason 20" hits harder
I built a 16 inch AR with a Mid-length gas system. It's a NICE gun. I did have some issues with short stroking, the gun ejected the spent round but would not pick up the next round. To fix it, I bought a chrome silicon buffer spring. It's a softer spring than the carbine spring I had in it and it fixed the short stroke. The gun has been 100% since. Being a mid-length, it is noticeably softer shooting too. At a gun shoot out at my parents ranch, a buddy had a full carbine length 16 inch and mine was softer shooting.
One benefit to the chrome silicon buffer spring, the spring has a 650,000 plus round life expectancy and should outlive me and the AR. The standard carbine buffer spring should be replaced at around the 12,000 round point.
I then built an 18 inch AR, and it also short stroked, using the mid-length gas system. I bought another chrome silicon spring and that fixed that too. I'm sold on them. They are a bit more expensive, although not ridiculous. Usually around $25.00 and the benefit of them greatly outweighs the initial purchase price.
Love the AR's and am planning another shoot at the ranch for my buddies.
I like Reidsville videos above many for, as stated below, for the calm, straightforward and easily comprehended presentation, the continuity of composition (he doesn't bounce around in subtopic babble or saying the same thing over and over) and he gives complete information on the topic or where to find continued information. It's a breath of fresh air in RUclips land. Between he and Sootch's vids, you don't need to search to far for what you need. I've not met either gentleman (but would like to) and don't really have a specific comment on this episodes topic, just wanted to let Reid know people out here really appreciate the effort.
RUclipsrs could take some good lessons from both.
Thanks, sir and for your service from another vet.
He is kinda like a hippy selling sandals, till the gun knowledge comes out.
@@bradcampbell7253
Jesus only believed so completely in peace because he had learned how to "fight."
20" is the master race of AR's and people laugh at me but i rock a 20" upper with an HBAR with carry handle rear sight and a 4x scope on top of the carry handle as my do all, SHTF/HD rifle. it's stupid accurate and the velocity a 20" gives is worth lugging around the longer platform, people act like it's impossible to fight in close quarters with it but somehow people were getting it done very well with them for a long time
Right on brother, short barreled rifle is a fad that should be forgotten
I've really been thinking about a longer barrel. ..im digging the 20...great vid as always. ..
I built 2 AR's and one was a 16 and the other was an 18. Both actually have the mid-length gas systems. I haven't fired a 16 inch carbine at the same time as the 16 inch mid-length for comparison, but the 16 is a soft shooter.
I had the same issue with both rifles, and since I built them both, I had to diagnose the issue and repair them myself.
After firing both the first time for function, both short stroked. Both would eject the spent casing but didn't pick up the next round.
The first one I built was the 16 inch, and I had bought all the parts as a carbine, then found the barrel was a mid-length gas system, so I ended up getting the mid-length gas tube and a mid-length front hand guard. Otherwise, the rest of the parts were the same as a carbine length was. A friend suggested trying a Chrome Silicon buffer spring to see if that fixes the problem. It did. I had a flawless shooter after that. I figured the longer gas system just didn't put enough spent gases down the gas tube to fully cycle the rifle, but the softer spring was able to accommodate for that. I'm sold on the spring.
When I built the 18 inch, the exact same thing happened. It was still a mid-length gas system, but a 2 inches longer barrel. I originally figured it would function OK being an 18 inch, but again, it short stroked. I bought a 2nd Chrome Silicon buffer spring and it's now running perfect.
One benefit of the buffer spring, it has a 650,000 to 750,000 round life expectancy. The standard buffer springs should be replaced at around the 12,000 round point, so they should outlive the rifles themselves. They are a little more expensive, around $25.00 each, but a great upgrade, plus they eliminate the spring sound when firing.
Love both rifles, and ended up giving the 16 to my wife. She likes the gun and also said it was a soft shooting rifle.
Mid-length is the way to go.
i have an Ar-15 in every length you have displayed. But, i tend to gravitate to my 20 inch build. its just so smooth and pleasant to shoot and at distance it shines as it is 1-7 twist and handles those 70 grainers well. i will say my 16" shoots better groups most days at under 200 which most people have a misconception that longer barrel equals accuracy. most gun guys know that's not always true.
I got the 16" with the mid length gas system.
The 18" that I would have preferred seem to be a lot more expensive (less common?) than even the 20"
Good basic information. ;-)
I like the different barrel lengths for the same basic reasons you do. The known rule to us old timers is that on average you gain, or lose 50 feet per second for each inch added or subtracted from your barrel. So your 20" barrel is going to have approximately 200 ft per second more velocity than your 16" barrel.
This video deserve a thumbs up.
I am impressed with the difference the mid-length gas system makes on my BCM 16" v the carbine length. I grew up on the M-16 in the army before going to the M4 style ARs at work. Mid gives a a smoother recoil impulse
I did a quick Google search and found a blog where they compiled velocity data on various barrel lengths from 16 all the way up to 26" on 5.56 rounds from various manufacturers. Even with a 16" barrel, all of the velocities were well over the 2500 fps mark with more starting at 3,000-3,100 fps. They calculated that for each inch less in difference, there was only about a 25 fps loss. I know that in order for the 5.56 to remain at maximum lethality (ability to double over and tumble), it needs to be moving at a certain speed. If Reid is correct, then even with a shorter 16" barrel, you should still be well inside that lethality range.
BlueonGoldZ ya but did they take into account or factor barrel twist? Like 1:7, 1:8, 1:9 etc.
10.5" barrels are still able to get above 2500 FPS. I wouldn't go shorter than that for the 5.56 round tho.
im pretty sure its about longer range shots, the 16" obviously goes slower at 300 yards than a 20"
@@tinysupreme6417 2500 fps at what maximum range for that 10.5 inch barrel? 100 m? 200m? At what rate of twist? With what weight of bullet? It would be great to know all of this.
BlueonGoldZ Tumble or not-no one functions well with a sucking chest wound.
Kind of splitting hairs on this one. Like you said, if 18" or 20" is too long just get an adjustable stock. The point is to get something that is comfortable for you to use "effectively." I watched a video with a 3200 ft/sec, 5.56 round go through steel armor plate, whereas, the 7.62 x 54R round just put a rib breaking dent in the steel plate. One might knock you down and hurt like heck, but the other kills you. Bigger is not always better and longer/shorter fits that same category. The optimum word is "effective." Keep up the great work Reid, I watch you religiously..... Sunday church with Reid... :-)
My favorite AR -15 and AR-10 Barrel length is 18". My favorite AR is one I built around a LA Rue Tactical 18" Stealth Sniper Upper. with reasonable wind conditions I can land shots on a 60% IPSC target all day long out to 985 yards using handloaded 75 grain Hornady Match Bullets.
Good video!
Im running an 18" .223 wylde barrel, and i love it! Havent had the chance to do as much testing as id like, but i will be shooting her more after i get out of NY State.
dont forget the longer sight radius is a plus too on the 20"
however I love my carbines
after watching james yeager vids its refreshing to watch you.
thumbs up for your moniker Glen
Why would you ever watch James' videos?
Yes, he actually conducts himself like an adult, a gentleman of moral character, unlike many other little boys that spew immature and disgusting vulgarity ignorantly thinking that makes them a "real man," when in reality it works just the opposite. "Profanity proves neither toughness nor intelligence; only a lack of self-control, respect, morals, maturity, language skills and character." -Sgt. Harper
"The General is sorry to be informed that the foolish, and wicked practice, of profane cursing and swearing (a Vice heretofore little known in an American Army) is growing into fashion; he hopes the officers will, by example, as well as influence, endeavor to check it, and that both they, and the men will reflect, that we can have little hopes of the blessing of Heaven on our Arms, if we insult it by our impiety, and folly; added to this, it is a vice so mean and low, without any temptation, that every man of sense, and character, detests and despises it.” Signed, George Washington 3 August 1776
James who?!
I love your insights Reid! You're helping me get my mind straight before I invest in a new tool
the 10.5 inch barrel used a carbine gas tube. Just needed to drill out the gas port a slightly larger size and she runs just fine. Its a extremely short rifle and good enough to hit over 100 to 200 yards man size targets. I enjoy it as a home defense rifle due to the short length or as a good great car/truck gun.
my personal preference is either a 14.5" or 16" barrel with a mid length gas system (lowered recoil, smoother shooting, still more than reliable enough)for anything under 400 yards. To me 5.56 isnt much use at 800 yards like some like to think and most people will NEVER shoot a 5.56 that far to begin with. but I do agree, I like a longer barrel since most of my shooting is outside, at a range. the longer barrel let's me get my long arms out further on it, lower recoil for what that's worth, and in addition to higher velocity the muzzle is out significantly further than a 14.5" barrel which is great, it just doesnt quite feel like it's hammering my ear drums through the ear pro quite as hard.
I hear people complain that the 18" is too long for home defense, but in the same breath, they insist that a shotgun is a more viable option. Unless you have a tax stamp, that shotgun barrel is 18.5" minimum. Go with an 18" (1/8 twist preferably) and you'll be effective from 5 yards to 500 yards.
+Josh Jones I've often thought the exact same thing when I hear the shotgun is the better option. LOL. Nice to know I'm not the only one who thinks that way.
Pistol for home defense. I don't need a carbine for less than 10 feet. Lol
Tax stamp lol, maybe if you’re a slave.
Bullpup conversion for Mossberg or Remington pump drops it down to around the same length as an AR pistol.
Congratulations on the 200K Reid. You've earned it.
I like the rifle length setup on an 18"
Same that's my go-to smoothest shooting don't lose much in velocity from a 20 inch or maneuverability of a 16 inch.
Run the same here...18 in rifle...love it
jadenspapa26 same here. I want an m4 badly, so the 16 inch is as close as i can get to that. Still wondering if it’s worth buying just for 2 less inches.
Great stuff sir!
I'm a 20 inch guy now that I have so many M16's in my storage area in Kabul, thanks guys!
lol🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
Great video. Great thing about the AR15 is you can simply switch uppers with different barrel length, gas system and even caliber - and just like that you have a '"new" rifle
I built a 18 with rifle length gas. Smooth setup.
20" is my fave too. 5.56 is very velocity dependent. 🇺🇸 👍
I use a mid length BCM 14.5 barreled rifle and I have to say I love that barrel length, but that is just my personal preference. Great video by the way very informative.
You're so chill. Your intros make me think I'm watching a "Bob Ross does guns" channel.
love the 20" inch barrels ..I could not find a 20 so I ended up with a 18 ...I kinda feel vindicated looking at Reid's rifles
You present this like a 16" barrel has to have a carbine length gas system. You can have a 14.5 with a mid-length, let alone a 16".
Has to have a carbine or longer. No pistol length is what he said. But longer gas systems with shorter barrels also have reliability problems with the bullet leaving the barrel before there's enough pressure to fully cycle.
@@RobCalhounPGH
That's not what he said *at all*. I meant what I said, and stand by it.
He should have explained mid length systems whether he likes then or not. Since I'm not going to waste time on a channel I left long ago, explaining things I'm not being payed to explain, I'll just say this. As far as your claims, you're wrong.
@W M
Mid length for the win
If you get a longer gas system with a shorter barrel it decreases dwell time & can increase parts wear & recoil impulse
@@DEATH_TO_TYRANTS stay classy...
I’m in love with my 11.85”, perfect size set up for me. 14.5” is my second choice.
Really appreciate this informative video, Reid. Thanks and all best of luck in your teaching to you and Patriot Nurse. Love you both.
I like my 16" rifle gas dissy. Its not for every one though as there is a potential for it to be finicky and temperamental. Mine runs amazingly well, incredibly soft shooting, and has been incredibly reliable even when I abuse it, but many people find that they are a pain in the ass. 16" carbine is a tad over gassed, but runs reliably. My favorite shorter AR's have been 16" mid gas though. Reliable, softer shooting, and all around great. lol Every one's mileage may very though. The important thing is just having enough gas to reliably cycle every time you pull the trigger.
I`m a 20" barrel guy as well. I have a couple 16" colt carbines and a sabre defense with an 18in barrel but the 20`s are my choice. I just picked up a 20in fn15 but, it isnt quite as accurate as my colts. at 1.25 in at 100yds it`s still plenty precise for about anything you care to do
Thanks really helped me pick out a barrel , went for the 20 in.
Good videos man. Thorough. I'm saving for a .308 AR build here soon. I was thinking of going 18" but after watching this I'm thinking of just going for 20 and calling it a day haha.
So an 18" Tavor would be great! Good vid
My Monday morning has just gotten 10x better. I like the 18" because you get the full rifle length, yet you cut off a sliver of weight over the 20". If I ever get a CQB 10.5", it'll be in .300 BLK
Raul, you must be around people who don't ask good questions. You probably think Glocks are as well with your 1911. The 300 blk is better than 5.56. And don't even talk about targets past 300 meters cause no one on this page can successfully hit targets at that range under pressure. Domestically there will never be a need for shit that far out for personal defense. If you hit someone past 50 yards it is no longer "self defense" and you're going to jail for life.
Raul, I want the best caliber for a suppressor, which is what subsonic 300blk gives. Also, supersonic 125 grain 300blk is just as good as 7.62x39, but I have an AR platform that is better with regards to parts and ergonomics and AR magazines.
It's not your decision on how far someone engages a threat(s). All situations are different. Go talk to Ben Mookie, or James Yeager, hell, ask Reid. All of them want capabilities of shooting past 50 yards. Why? Because they have war experience unlike yourself. Go tell them to their face that they don't need a rifle to shoot past 50 yards. Who are you to say no one here can shoot past 300 meters? With that ignorance, you probably don't even own a gun. Discrediting other's defensive firearm of choice that's deadly and accurate past 50 yards doesn't make your pellet gun more deadly. You should shut your mouth and listen a tad more.
Raggarade, you're right, it's not my decision, it's the law's. I'm not giving a personal opinion. In most states someone is not considered a threat past 100 yards with some states having much shorter distances. If you study self-defense situations it's on average within 20 feet. These guys think they're still down range, and even down range they weren't snipers so this fixation about long distance is a waste of time when thinking logically. This video is about self defense. No one in a home wants the velocity of a 18-20+ inch barrel. That is not smart unless you live in Michael Jackson's Neverland Ranch.
18-20" are more reliable due to the rifle length gas system, that's why they're recommended over carbine length gas systems. Also, it's not just for personal self defense. It could be a defense against hostile foreign forces. In which case longer shots can be just as important as short distance shots. Sorry for name calling, for some people it's needed to get the point across.
Awesome review/breakdown. Helped me make my own purchase. 👍🏻
Nothing beats the 20". Just so smooth and easy to shoot.
Outside of getting a whole different rifle for each length, what are your thoughts about just getting different uppers for each situation? If you happen to have a sixteen inch carbine say, would stepping that up to the full length 20 be an issue, as long as the upper fits well will it not give you those long range advantages when nessicary?
I choose a 16" with a mid-length gas system. I live in the city and can't really envision needing to take more than a 250yrd shot even in a SHTF situation. More than 300yrds is really asking a lot for a .22 cal bullet. That being said, the 18 inchers are appealing. Maybe my next AR?
R Priest I like the 16.5 inch barrel that extra 1/2" barrel will add some more bullet velocity and keep weight down.
R Priest - your instincts are on the money. The 5.56x45 NATO cartridge can be lethal out to 500-600 meters or more, but it is a much more-reliable fight-stopper inside 300 meters, 0-300 meters being the "envelope" for an effective assault rifle. And the small, light projectiles -in particular 55-62-grain fodder - are really at their best inside 150 meters because the AR system relies so much on high MV for effectiveness. A 55-grain M193 leaves a 20-inch muzzle at 3240 fps or so - which is really moving - but because the projectile is so small and light, it dumps energy quickly as MV decreases and has poor retained momentum. Modern ammo designers and manufacturers have really done an outstanding job stretching out the 5.56 to ranges probably in excess of what most thought could be done, but there really are better choices for hitting hard at medium and long range. Eighteen is a pretty good barrel length, which is why a number of mil-pattern rifles and carbines have used it, such as the CETME/G3 family of automatic rifles.
Get multiple uppers for different applications.
@@PrimericanIdol dang, that’s an old comment of mine. Things have definitely changed in my gun collection as I now have multiple AR’s in different barrel lengths.
@@Goldenwithaleash Would you say 18inch is the best all-around length?
Reid, totally appreciate this RUclips segment you uploaded for us regarding AR-15 barrel lengths. A lot of the reason I like this is I had a hunch that going shorter than 16" is unwise. And your opinion on the matter justifies my conviction. I already have an AR-15 with a 20" but I next want to built a "smaller" more compact, and lighter AR-15 with a nice light 18" barrel. I like the 18" because I believe it still uses a rifle-length gas tube, but perhaps I'm wrong, maybe it is mid-length. (Any recommendations on barrel manufacturers, Reid?) Thanks again for your straight-to-the-point video.
Thanks for the overview. I went with a 16" barrel for exactly the reasons you described. It helps that it is the ONLY size that will fit in the 5.11 Tactical COVRT M4 bag.
he's very incorrect about the caliber needing 2500 fps to fragment reliably. That's only true if you limit yourself to the crappy fmj the military uses. He's very rigid in his thinking.
He also thinks there's a huge velocity/ energy difference between barrel lengths. That just isn't factual. The caliber only loses 25 fps per inch.
He's imagining that's more than it really is. The difference between a 16' and a 20' is 5% velocity and 10% energy.
He's wasting his time even thinking about it.
The Immortal Hmmmm . . . you just "scienced the shit out of that"!
Luckily you can have a 16 and a 20 inch for about a hundred bucks.
I personally love how smooth a 20" shoots. But a 16" is very comfy to carry.
My next favorite would be 14.5 with a pinned/welded muzzle device.
I'm just patiently waiting for a 10" barrel with a 6" muzzle brake.
Good info, Reid your videos would be aided by an actual table, and some lighting. For the viewer we've seen enough of your bed comforter and your wall to wall carpeting. Just some constructive criticism to make your videos better. Again great info, tips and knowledge, just maybe add a little production value ie. a table, and some better lighting ( work light sets from Home Depot are inexpensive) so we can better see what you are talking about.
Saw you dancing! Loved it! 🕺🏻
I have a MK18 10.3" SBR. It still pushes the 5.56 at around 2600-2700 fps. Also have a suppressor on it. Which brings it around to what the 18" barrel rifle you're discussing. Gotta watch them corners
Great video I am more convinced to get the danial defense mk12 rifle. Rifle gas system with a 18 inch barrel!
Look up the Bravo Company Mk12's, I found much better price options there
+RAGGARADEthirst Yep totally agree! If I can get both I will!
I love my DD MK12. Got it last year, no issues so far. Highly recommended!
And the DD uses a rifle length gas system
D.P.M.S. AR 10 -308 CAL.20 INCH BARREL--GO BIG OR GO HOME.
If financially I can support it. Sure!!!
Lol does the dpms ar10 work well?
You forgot to mention the M1A in 7.62mm NATO.
Flip Rodriguez oh yeah.
Great info! It's nice to know I'm not weird for preferring a 20 inch ar. I don't know why I haven't subbed your channel sooner.
thank you was looking at more info on this for a future build . much appreciated
I’ll go with a 20” for reach and Velocity
Reid, what is your take on bullpups like the Tavor? i.e.: are they "the best of both worlds" in maneuverability in tight spaces and also longer barrel ballistic advantages?, or do they have their own issues and costs that outweigh any advantages in your opinion?
Trigger and reliability sacrifices probably aren't worth the extra couple inches that you could just drop in exchange for a smaller barrel.
@@robm6510 "trigger and reliability issues" Ah...a parrot.
@@zoltancsikos5604 1st to comment, so parroting what? I'm not sure.
That's one hell of a way to defeat overwhelming data though ... "All the data points are parroting each other". :D
Thanks Reid, Great video,thanks again for sharing.
NWC Crane perfected the 18" version in the Mark 12. There is a lot to be had in 1/8 OR 1/7 18" barrel with a rifle length gas system. Combined with the MK 262 77 gn MHP you have sufficient energy at long range (600 yds) to be effective. Not so with the lighter ammo and 1/9 or even slower twist rates and stubby barrels. This guns gasses properly suppressed without much more than a flat mainspring, full weight bolt carrier assy and buffer. See Midwest Industries version too.
16” with midlength gas problem solved
That's what I went with.
That's what I use as well.
18" rifle length is even better.
TWIST RATES???
1:8
Good for virtually all bullet weights.
Great video! Was wondering what length to use on my home defence pistol build, so I think I'll stick w/16! Great explanations!
20 inch barrel with a solid stock is such a major aesthetic
all my carbines/M4s have 14.5" with pinned flash hiders. I see no real accuracy differences out to 300 yards witch is the range I shoot out to
Same here. But you should definitely checkout mrgunngear's videos on barrel lengths and body armor. The difference of a few extra inches of barrel length often times will be the difference between making it through body armor or not.
@@legolasgrof maybe that's why folks don't get bigger lengths? We aren't in combat or a home warring nation so folks will get a gun shooting weapon. 14.5-16 fits that.
@@nomad155 i agree. There is a time and place for a 5.5 inch 300 blackout supressed, and a time and place for an 18 inch 556. It all just depends on foreseen engagement distances and environmental and friendly considerations...