Smyth Busters: A Heavy Caliber AR-15 Requires a Heavier Buffer
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- Опубликовано: 3 май 2021
- Brownells Gun Techs and debunkers of misguided firearm myths Caleb and Steve usually keep things light. But today they delve into a heavy topic: the common belief that an AR-15 chambered for a "heavy" caliber - .300 Blackout, .350 Legend, .450 Bushmaster, etc. - requires a heavier buffer. Heavy caliber = heavy buffer.... Seems logical, right? Actually, NO. The AR-15 bolt / carrier system is designed to handle a certain amount of gas pressure, and the gas port up front on the barrel is drilled to provide the right amount of gas flow to cycle the gun reliably with a standard 3 oz. buffer. A blowback-operated pistol-caliber upper in 9mm Luger, .40 S&W, or .45 ACP DOES require a heavier buffer to manage the higher pressure of the direct-blowback gas. An AR-308 has a heavier bolt / carrier group, so it needs a heavier buffer to push the BCG back into battery. Sometimes, a heavy buffer is needed to tune your system for short barrel lengths, to slow down the cyclic rate on a full-auto AR-15. A heavy buffer can also be used to slow down the recoil impulse to reduce felt recoil - but the gas flow has to be adjusted to work with that heavier buffer. Most of the time, the standard 3 oz. buffer works just fine. So the myth is BUSTED. You do not need a heavier buffer on an AR-15 chambered in a heavy caliber.
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Glad to see Caleb took the price tag off the bottom of the cup. L0L
Good info and the synchronized sip at the end...my day is now complete.
Really enjoy these smyth busters episodes, very useful information in these vids. A lot of questions I have are answered through these. Thanks!
Going to a heavier buffer in an older car15 solved a lot of problems for me.
Perfect timing for my recent purchase. I’m learning from all your videos. Thank you
I am running a 7.62X39. I had never had issues with buffer. I have swapped buffer spring to an AR10 carbine spring which has softened felt recoil down to standard AR15 recoil.
But Caleb the guy next to me at the range I didn’t ask said he ONLY runs H3 on everything and drills his gas ports out with a 1/4 bit
Thanks Brownells for putting this video out! I’ve been searching through the forums, and asking the gunsmiths I know for the answer to this very question! Jerry Miculek just released a magnetic buffer that is designed to dramatically reduce recoil out of an AR-15 (he said in the announcement video, “for MSR’s chambered in 223/556 & 300blk”).
I am recoil sensitive after being disabled in the line of duty, and even though it already has relatively little recoil, I’ve been wondering if I could put that buffer in my 6.5 Grendel to further reduce felt recoil. From your explanation, sounds like I can without a problem!
Good info, I have a standard-length carbine, last year I swapped out for an H2 buffer and a flat wire buffer spring, took the twang out of the recoil and my shells are ejecting at a much better angle.
Great info. Between the front setup, buffer, AND spring there can be multiple options on finding the "perfect" tuning for the rifle.
Yup.
Standard spring with heavy buffer may work while a heavy spring with standard buffer does not..
And, some setups, the carrier may just need oil too... seen it happen. Not closing, so peraon wanted heavier spring... looked & it was dry... oiled it up & cycled fine...
I run H1 buffers in all my carbine length rifles, and they all have mid length gas systems. For my MK18 I use the H3 buffer and the LMT enhanced BCG. Works like a charm. I may use an H2 buffer for an 11.5” build
I always understood the buffer weights had more to do with select fire guns and the bolt bounce during burst or full auto fire. What I was told is run the heaviest buffer that the gun will reliably lock open on when firing the last round in the mag. Generally I have found a H buffer to be perfect for 16in AR with carbine or mid length gas system as they generally tend to be slightly over ported/gasses for reliability.
Just installed a spring from a Chevy 1500 and a train buffer. AR runs like butter now.
Lmao
Yep agree. All of my AR's have either rifle buffers or H3 carbine buffers. Three of them are 5.56 X2 and one 6.5 Grendel that I run Geissele Super 42 H3 buffer and springs in. Two others are a LR308 in 6.5 Creedmoor and and another 6.5 Grendel that run rifle buffer and springs. All are reliable and they don't tear up brass like they did with lighter buffers.
Apparently, Diamondback uses a light buffer in the DB15. When I threw a .350 Legend upper on it worked ok with FMJ and XP rounds, but the heavy 180 soft points were causing no really hard ejection like the gun was over gassed. I got another lower (poverty pony) and put it together with all low end milspec parts, it ran all of them perfectly.
Thanks, you probably saved me some money. I’m building a 20” rifle-length gas system 6.5 Grendel Ar-15 and was wondering if I needed a heavier buffer.
I have a 450 Bushmaster carbine upper on a 223 Bushmaster lower. Works fine with the stock buffer that is in the 223 lower..
Are you using factory rounds or reloading your own?
@@Ruteger100 I use both. Reloads mimic factory loads but a lot less expensive!
I did a 450 bushmaster with a H3 buffer since I researched the uppers were designed to run with a fixed stock and rifle buffer vs carbine buffer tube. I read the H3 is more equivalent to a rifle buffer and many were using the H3 with success so I went with that and it works fine. The adjustable gas block with a faxon barrel was also needed. I really do not know what is right, it’s experimental when mixing parts.
Just watch your ejection pattern, 3 o'clock is a perfectly timed rifle. 2 o'clock is a bit more gas running the bolt faster. 4 o'clock is a bit under gassed running the bolt slower.
Yes! We covered that in greater detail in previous videos, the ejection pattern certainly tells a story.
I need to search what you all have to say about adjustable metering of the gas. I have an 6.5g AR upper from Alexander Arms that runs well with the standard buffer with an 18 inch barrel shooting wolf ammo. I have a BCA upper in 7.62x39 that is over gassed and functionS well with an H3, but not a standard buffer. I was getting double feeds from some magazine I assume due to a rapid bolt speed that was borne out by ejection to the 1 o'clock position. The trouble is if you use an H3 with an overgassed system your felt recoil goes up.
So I eventually need to adjust the gas flow through the system and I am thinking of those that are on the carrier as being easiest to install, but I think the action will get dirtier sooner with such a system.
330😊
No mention of ammunition type... e.g subsonic vs supersonic ?? 300BLK usually has a pistol length gas tube. Standard buffer weight works well with subsonic ammunition. H or H2 works well with supersonic.
Speaking just about 458 SOCOM, you may find the myth "plausible", as well as some other possible changes. I have a 16" 458 upper from a well known and respected manufacturer. It has a carbine length gas system. With the standard configuration as provided by the manufacturer, on a standard AR lower, it was unlocking way too early, while the chamber pressure was too high. This resulted in bent brass rims and a lot of extractor wear. I'll skip all the details and iterations, but I solved the problem with an adjustable gas block to throttle back some of the gas. However, heavier buffers can also delay unlocking as can different buffer springs. I note that some manufacturers now provide one or both of these with their 458 kits. So, I wouldn't necessarily say that a heavier buffer is not sometimes needed for certain chamberings.
Yes, that is a barrel gas port issue more than a buffer issue. A heavier buffer is just a bandaid in that situation, not the cure.
Thanks again guys much appreciated
Great information! Thanks
I have BCA 18" 450 bushmaster with midlength gas tube and have trouble feeding the third round ejection wise is good and around 4-5 o'clok I replace the buffer spring about 2" longer than my standard ar spring still have same problem thank you
Why are so many 450 bushmaster rounds failing to lock the bolt back after last round. Myth revived.
You may have to tinker with your buffer and buffer spring if you are running a 300BO more than you might with other rifles. I went from an H2 buffer down to a 3 oz and installed a tubbs flatwire spring made for 300BO. I had the gas block opened all the way, and verified gas port alignment with a boroscope, and still wasn't getting LRBHO with a standard carbine buffer spring and H2 buffer. That was with a 10.5" barrel with pistol gas length. This one has given more issues with the feedback system than any other rifle has. Excuse me....er...I mean....pistol. My opinion on the matter is to solve the gas feedback issue at the gas block, not by tinkering with buffers. If it can't be solved at the gas block, then ok....start messing with the back end.
Ooooooh this is a good one! I can hear all the ‘well actuallllllly.....’😂
Hahahaha
The what if brigade
@@eddyflo2978 and the "ya buts"
And don't forget the " well I know a guy"
Extremely helpful! Thanks
Heavier buffers are to control cyclic rate (slows the unlocking of the bolt to reduce chamber pressure) and also to reduce bolt bounce with heavier profile barrels. Standard carbine or H1 max for most applications. H2 recommended for heavier profile and full auto.
Idk my 458 has a standard buffer in it and it isn’t cycling, it could be a issue of the gas port being the wrong size but I was gonna try and get a heavier buffer to try to fix that
Heavy buffers and/ or bolts help strip the rounds out of tightly sprung magazines. I bought one of your titanium bolt carriers in 308 awhile back, while it was light and craftsmanship looked very good, it would fail to seat rounds into battery every few shots. The weight was too light to carry the energy needed to push the rounds out of the mag without slowing the action, it would barely be out of battery at the end of travel. So I put the lantac bolt in and it goes bang now everytime. The 308s builds are trial and error to get right, having alot of money helps.
you are correct and the myth is still out there. there has to be 200 videos on the youtube right now that had to change the tube out and some still needed drilled.
Thank you, that video was very informative.
The heavier buffer is for softening the recoil impulse but if you soften it too much the gun won't cycle. As you change manufacturers or loadings within a caliber this can affect which buffer weight is the best balance between reliability and low recoil. Underpowered ammo in any caliber can even cause the standard buffer to be too heavy. But a gun with enough rounds through it (well over 10,000, I'm sure) may have enough gas port erosion that a heavier buffer is justified. Start light so the gun will definitely cycle and go up until you like it or it stops cycling. Otherwise leave it light, accept the recoil, and be sure it will always cycle. I have heard from multiple sources that the standard M4 is over gassed on purpose compared to most civilian AR setups because the military wants more reliability and accepts all the trade offs (heavier recoil and slightly more part wear).
I'm running a blue sprinco and an h2 in my 16inch fnh midlength and it still cycles steel case, seems over gassed to me. With a standard spring and buffer it kicked like a 20ga.
Thanks for the Information… i just order a 450 Upper for hunting.
Will see how that perform with my msr 15.
Regards from germany
If you are going to run different uppers on the same receiver just get adjustable gas blocks for your uppers then tune them for the same lower, yes a bit more expensive on your upper build and will eliminate so many problems.
Somebody forgot to share this info with Daniel Defense. My upper from DD ridiculously over gassed and there is no way a standard 3 oz buffer and standard spring was the intended design.
@@JenkinsStevenD Your fact is a load of BS. Over gassed rifles have failure to feed issues amount other problems. So maybe we should start with function in any weather before we brag about cold weather function. Standard milspec gas port diameter works just fine in cold weather.
Thanks, answered my question before I asked it.
Having feeding issues with a 350 Ledgeon I have a 20 inch barrel what buffer should I use ?
What buffer would you recommend for 300blk 8” to run subsonic rounds
would I add a lighter buffer to a 300 blackout upper build if it does not cycle right?
Can you make a video on recoil buffers on ruger 10/22 and mini 14 are they good or bad
What is the difference between a Vietnam era M16 and an AR-15 other than barrel length and automatic fire
I’m cycling supersonic real good just when I use subsonic it fires 1 round at a time, I was told it should cycle once I get a suppressor
Need adjustable gas.
I’ve got an adjustable BCG…and still wouldn’t cycle properly
@@MrRoro256 Which one?
So I can swap the stock and buffer on my 50beo finally? That’s what’s been keeping me from doing it
Please address the "different rules for AR-10's heavier BCG" a friend purchased an 18" barrel, rifle length gas system upper and wants to run a carbine receiver extension(buffer tube)/buffer and spring so he can use a Magpul PRS Lite stock. Is this advisable and will it be reliable. Thanks!
Off topic question. Is it necessary to epoxy bed a scope mount or a scope in its rings on a precision rifle? And if not, is there a circumstance which might cause it to be needed?
Good question, I'll add it to the list of SmythBusters!
BCA recommended H3 for their 450 BM 18". Runs like a top.
Good to know 👍 My 18" 450 BCA worked great on my M&P lower. Then I got a stripped BCA lower and assembled with a Palmetto kit. Now my BCA 450 will not hold open on the last round by itself. It will do it if run the bolt manually. Going to try a H3 buffer 👍
@@Happyhandcannon Used on a Colt and M4E1 lower with LaRue trigger as the mood hits .
I have a 10.5” AR 450. Handloading the 450 with the great 200gr Hornady FTX bullet. I used this in the Smith 46O and it dropped deer like a sledge hammer. This bullet is remaining in the deer expending all of its energy. Bullets are expanded just beautiful. It is doing the same in my 450. In the 10.5 barrel the recoil is very heavy, would a heavier buffer help in this situation to tame down the recoil?
Thank you
Heavy buffers are the quick and cheap fix for an overgassed rifle, but they don't address the underlying cause. The problem is a "standard" port size can only be done for a specific loading. And most barrels err on the side of bigger gas ports and overgassing because that's an easier fix than undergassing.
A heavy buffer might dull the symptom, but an adjustable gas block will usually fix the actual problem.
I recently built a AR47 pistol (7.62x39) with a 10 inch barrel and was not cycling right with failure to eject at times or having the spent casing pinched half way coming out. I originally used an h1 buffer weight that came with the Shockwave Blade set up and after talking to the guys at my local gun shop they suggested using a carbine weight buffer. Long story short, it runs great now with no issues. Can someone explain how a lighter weight helped when I thought I needed a heavier one?
The heavier the buffer weight, the slower the bolt velocity.
If I build a AR with a 8inch barrel should I get a heavier buffer ?
It's easy overthinking the buffer weight.
I have a 16" .300 Blackout with a carbine gas system. I am trying to get it to reliably cycle sub-sonic ammo with a TiON suppressor. I have tried a fixed gas block, an adjustable gas block, an H1, H2, and H3 buffer, and just about every combination but it just will not cycle. On the recommendation from a smith, I cut a recoil spring down and it would USUALLY come back to battery, but every 4th or so round, it would not.
When I use the same setup but with my 8.5" barrel (again, .300 BO, sub-sonic, suppressor, and any weight buffer and a fixed gas block), the weapon cycles perfectly ... magazine after magazine.
Is it just impossible to use sub-sonic ammo and a suppressor on a 16" .300 blackout? Thoughts on what to try next?
The problem is you need a pistol length gas system.
my .350 AR jams every round with the standard stuff. failure to feed, it just can get up the ramp should i just get a stronger (or longer) buffer spring?
actually, now that i think about it, the brass did just sail into the sunset while i was at the range
Still wondering why my rifle length gas systems won’t cycle on my mill spec lowers? 🥲
THANKS!!!
Great video
Wouldn't a heavier buffer in a select fire AR result in a slower cyclic rate?
What about piston uppers? would the heavier mass momentum moving backwards require a heavier buffer?
Yes, LWRC uses H2s at minimum on everything as does LMT. It's marginal but that's also because the guns are gassed heavyish to cycle through dirt if needed since both companies have contracts
I built out a 300blk out with an H2 buffer and have been having issues with cycling the bolt, it juuust barely won’t shut about 40%? Of shots, so I switched it to the carbine buffer and will update this hopefully in a week or two with results on reliability
Update?
@@ishkabibble2204 so I took it to the range and it STILL jammed, made me sad af ,
Took it to the gunsmith & then
I got it back he reported it was actually burrs in the barrel & he machined those out.
Put tons of lube on there and now gotta go back to the range 😅 I realllly hope that this works out
@chupacabra304 Thanks for the quick reply. Good luck.
@@ishkabibble2204 no problem, Im fortunate enough to work somewhere where i’m allowed to surf da webs .
When I go shooting this next time i’ll try to remember to post another update.
Edit: i’m really hoping I have no more issues 😮💨 it’s been an absolute nightmare trying to get this build working. It’s actually a really expensive build but I suspect the tolerances are stacking in weird ways and that gave rise to failure to go into battery every couple shots which is super frustrating especially because I built it with intent of it being my home defense gun. When it finally runs smoothly i’ll be so happy
If im not sure I email the manufacturer and they tell me what buffer to run.
So I had to standard eight to lower and I slept the carbine length gas system upper on it. I do have light primer strikes every third round or so. With changing my buffer to a carbine Waited buffer help?
If it is going fully into battery and you are having light primer strikes then no, you have another issue there.
Ok thank you
Is it safe to say that for subsonic 300 aac you need to put in a lighter buffer or spring? Because my setup with a factory buffer for 556 will not cycle subs.
I watched this video to answer the same question. Did you find a lighter buffer weight worked in this case?
Have you guys done a segment on how to make your di ar platform quieter? I'm so used to the creaky bed spring sound, any way to make that go away?
Switch to a Geissele Super42 or JP Silent Capture Buffer.
JP Silent Capture spring works for me, I’ve got them in two rifles and they run wonderfully out of the box, but the extra buffer weight options are handy if needed
You might want to consider a Tubbs Precision flat stainless steel spring as well. I have them in "3" different rifles and they cycle quietly. JP is $130.00, Geissele spring & buffer is $65.00 and the Tubbs is $28.00.
A cheap solution is to coat your buffer spring with grease, I use mobile 1 high temp wheel bearing grease. I've found it gets rid of the sproing sound. Don't need too much, just a light coating on the entire spring.
I had that same problem with the regular spring. I bought the flat spring from Strike Industries. It's way cheaper than the JP Silent Capture or Geissele spring. It solved my problem. I'm also running it with a Spikes Tactical T3 tungsten buffer weight because I use it in an AR shorty.
What buffer weight for 7.62 upper
Thinking your gun is working properly because it goes bang is not right.
Overgassing is stupid. So ere light buffers.
The gun is just beating itself to death.
You don't sound too bright
Morning gentlemen ✌
Well good morning!
Working on a 6.5 Grendle in an AR platform that is overgased, double feeding, ejecting in the 1-2 o’clock and experiencing bolt bounce. It has all factory assembled components that include a 3 oz buffer. Tried three different mags and same results. I’m changing out to a 3.8 buffer. Based on the video, is my diagnoses still sound?
I would definitely get an adjustable gas block. Being over gassed can cause problems.
I built a 6mm ARC and went with the A2 buffer because that's what I read on the internet regarding the 6.5 grendel. Now that I have seen this I wonder if it was necessary. It seems to run fine. Though I have only shot 30 rounds through it 😂. Dang ammo shortage 😒
Your best solution would be to correct gas drive, and the easiest way to do it would be a BRT gas tube. No setting screws or moving parts necessary means it’ll stay reliable.
But if it’s gonna be used in adverse conditions you can tame that heavy gas flow with an A5 buffer system (and likely a Sprinco green spring) and that sucker will run like a sewing machine even when it gets filthy
Thank goodness somone said the truth. I can't tell you how pervasive this myth is.
glad to hear about the heavy buffers, but i have a question about the buffer springs. what is the difference between an AR15 5.56 CARBINE spring, and an AR308 .308 CARBINE spring? and can i use the .308 spring in a 5.56? same question with the RIFLE springs. HELP....
No, they are different lengths.
@@brownells so, maybe palmetto state installed the wrong spring in my .308. i was curious, so i measured length the .308 was less than 1/16 of an inch longer, but had the same number of coils, as my AR15 5.56 carbine. my Colt 223 rifle has a longer spring than both and more coils. please i really want these to be correct.
Isn't it true that most rifle are over gassed. To make sure they run on all ammo types? And how is this theory affected by 7.5" short barrels with large cal. Bullets?
Also doesn't heavier buffer weights save wear and tear on an over gassed rifle? If so is that just bolts? or includes extractors and bullet casings?
Thks good sirs.
My 300blk needed a heavier buffer due to being suppressed.
I have 300blk 8”..having problems cycling subsonic Ammo …do I need a heavier buffer
That depends on what the problems are specifically.
You're probably short stroking because there's not enough gas pressure from the subs to cycle the BCG so a heavier buffer would make it worse. Mine won't cycle subs without my suppressor on it for that very reason. If you want to run subs you'll need to tune your gas and buffer system to run them. I'd recommend an adjustable gas block so you can change the gassing if you're shooting subs or supers.
What's the issue? Failure to feed, failure to extract, not stripping a round out of the magazine, what exactly is the issue? The Dude is probably spot on on his guess, but you have to let people know what issue you're having before people can help, my friend.
Hey buddy. If you verified the gas block alignment and your gas block is fully open and still having issues, get this spring: ARBUFLW It is on David Tubb's website. It reduces the pull weight over a carbine buffer by about 2 pounds which might be all that is needed to get it to cycle correctly. More than likely that will fix your issue. If not, REDUCE the buffer weight. A heavier buffer will exacerbate the problem.
Personally, I run a VLTOR A5 buffer on a 20" upper, just because that's arguably the most reliable AR that you can get.
Great choice!
That’s why the USMC liked it. Smooth
The A5 is great on anything you put it on. It did wonders on my MK18.
@@kevspss They never ended up using it though.
@@johndunbar2393 Yea they're great. I'm using a UBR Gen . 2
Information is to vague I have a 7.5 inch barrel on 76 2 x 39 and it requires a H3 buffer
Correct information
My 10.5 runs great with its 3oz buffer
I think guys over complicate things when working on these guns personally,,,some guys are saying a given gun is over gassing other guys say the thing is undergassing,,,or they want it to shoot softer (personally it's a 223/556 how can that ever shoot hard???? it's a pussy cat if you shot it from a nerf gun!!!!) so they start playing with shit and before long they end up either going back the way it was or they can't remember exactly the way it was and never get the thing working right again when at least it worked flawlessly for the most part before they ever started dicking with it to begin with,,,,I remember my first ever AR somewhere near 20 years ago now, a couple guys that were supposed to be all into AR's and supposedly knew so much about them tried telling me my second hand colt was overgassing, and I should change this and that and it would work better, and if I let it keep running that way it would beat itself up in short order BLAH BLAH BLAH,,,well here I am still own that gun just like it was the day I brought it home from the pawn shop and bucket loads of ammo later and NOTHING has been done or replaced since I owned it and it runs anything you put in it just fine and still holds good accuracy,,,now a couple of those guys are saying and telling me I better change this or that or it's going to break yada yada yada,,,to them I say just go away and leave me alone and when and if something breaks I'll deal with it when it does untill then just run the stupid thing,,,,funny thing about it those same guys I've watched dick around CONSTANTLY with their guns weather they were built by them or it's a factory gun,,,I think they and many others just can't stop F--king around with crap out of boredom or something because the more they dick with them the more trouble they seem to have with them,,,that said I've built (put together) several AR's now over the years for myself as well as a couple buddies and I've NEVER had all the issues theses so called pros seem to have,,,I just use tried and true parts from combinations that are tried and proven to work and leave all the super custom combinations and specialty super boutique parts alone, because they often times have NOT been tried and true because most are priced into the stupid level and only the very rich and show off builder will ever use them (and these are the guys that most often end up with an AR with more money in it than what would have bought a couple high end AR's, that would actually work instead of the over priced abortions they end up with that won't even work well),,,I'm into the school of keep it simple stupid and if it works don't dick with it let it run untill it needs dicked with because it did break,,,and with the money you save along the way from dicking with it you buy or build another one for backup just like it because you know it works.
2:35-ciclo rate?…… this dude doing too muck. I assume he loves ihop as best breakfast ever
I see the homies are at it again
Black rifle coffee co mug in the lower left corner!
until you add a silencer. And then you can throw all the "usual" rules right out the window. I've busted several 3oz buffers as of writing this comment.
busted, wtf?
I get individual buffer weights from kak. Aluminum, steel and tungsten. Dont know why brownells dont sell them.
Agreed
How about a 50 Beowulf upper? I been using it with a standard AR 15 lower and was wondering if the buffer spring might need to be stronger.
Did you even watch the video, genius?
@@alexjordan6371 Didn't have time to watch it through since I was busy Asstien. Some of us don't sit on our azzes all day watching youtube azzclown!
@@alexjordan6371 Don't be a jerk.
Bottom line...if what they are discussing makes no sense to you then stay milspec on your ar 15 and keep it basic... spend money on target practice at the range
Heads up fellow shooters. If you purchase any Brownells products on Optics Planet you have no warranty. I notified both that I would warn you. Joe Harris
I picked up a 450 Bushmaster upper and it is basically a single shot. It won't grab the next round.
My 300 blk did that and I ordered a flat wire spring and H2 buffer from midway usa and that fixed it.
Seems like this site has some differing options. I’m running a 7.62x39 and it recommends H3. www.80percentarms.com/blog/ar15-buffer-weights-what-the-difference-is-and-how-to-choose/. My barrel is 16” with carbine length gas block but I’m also breaking the rules with a piston driven AR47. Superlative Arms kit. I tried both H and H2. Cycles too fast with the H, think I need a bit more dwell time with a heavy buffer.
👍
I have tried a H2 buffer on my standard AR15, and the recoil was minimized without altering the bolt cycle but after firing about 100 rounds broke the buffer retainer. Solution: Put back the H1 buffer, replaced the buffer retainer and now works as was intended.
@@Unequalibrium thank you for the info but my upper and lower are certainly mil-spec (Anderson/AeroPrecision) and the buffer retainer that came as part of an Anderson lower part kit could be faulty. I replaced it, put back the standard carbine buffer and works perfectly.
X39 Ars need a word
I love seeing older gentlemen like Steve who aren't NRA fudds and that love the AR platform especially in the hands of the people
Agree. Too many people of earlier generations have issues with civilians owning ARs. "aLL i nEeD iS mY tRusTy cRuSty LEveR gUn."
@@NoNo_IStay right. And its always the fudds with the "from my cold dead hands" bumper sticker
I always imagine these two doing a parody of themselves wearing 70's clothes, hats with a long feather in them, and calling it "Selecting the right guns for street pimpin"
This isn't correct. It's case by case basis, and totally dependant on what parts you have. If I were to use a standard carbine weight for my 762x39 rifle it would beat itself to death. The carrier velocity would be too high. I bought the odin works adjustable buffer and I found that it likes the h3 buffer weight, and 762x39 only produces 25% more energy than 556. The ar system is a 4 part balancing system between how much pressure is produced at the port, how much pressure you let through the port, how long the internal gas piston is sealed, and how much resistance to rearward travel the carrier has from the buffer and spring system. It's more complicated than you are letting on, and shouldn't be blanket stated as simply as you're putting it.
I have tested and use a standard 3.0oz buffer in my 7.62x39 build, if you are having those issues you describe, then the gas port in your barrel is too big, rather than upping your buffer weight, you would get better performance by using an adjustable gas block.
how about to run a 22lr
No buffer at all, the 22lr conversion uses it's own recoil springs.
thank you !
.458 SOCOM works just fine with a 3oz. Buffer....just sayin
I have a myth: can putting a 1911 hammer on half cock damage the sear/trigger?
I must say, I think Caleb needs a heavier hair formula. The last couple of video's he has had a twiggy sticking up on his hair. 2:07. I mean it's really starting to be an issue.
It was more of a haircut issue lol, I am pleased to inform you that the issue has been rectified.