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Very stable. There is a wobble for sure since it's hinged, but those teeth where the lock indexes into is very secure, nothing you'll notice when shooting. Haven't had any issues with it binding or attempting to close, or otherwise impacting accuracy. On the extension, I just put some loop tape on the tube so the stock wouldn't wobble on the tube, but that's less on the adapter, and more on the interface for between stocks and buffer extensions

Firstly, thanks for the very thoughtful comment and feedback, I really appreciate it. I need to get this featured back on the channel, I ended up doing what I talked about and did a “shorty” A4 with an RRA Entry Stock, B5 Type 23 (I hate it, will go with a Type 22) grip, and a MBT-2S trigger. For the money, the Douglas is one of the best barrels out there. Good choice on the 1:8, it’s my go-to twist and does just fine with crap 55gr ammo. I only have irons so far while I weigh my scope options, but I can put shitty 55gr PMC into 1-1/2 to 2 inch groups with the Centurion which is way more than fine IMHO with irons. I do like some of my older clone builds for nostalgia but it takes years for the military to sanction trials, and they’re always filled with a lot of controversy. MP7 over the P90, Barret MRAD over the AI AT-X, the OG Mk 11 program, hell KAC getting contracts over others. The list goes on. The ASR program took USSOCOM half a decade, longer when you factor in the Mk 13 and original AI AW and accurized R700s. I do love this MK 18 SMRs, I have a feeling that Geissele or someone else will do a KAC URX3.1 style of these one day, where the ARCA doesn’t run the full length on the bottom though the MLOK everywhere is a great touch. Super rigid, and one of the few production rails longer than 16” not counting the KAC URX6 in 19” but that won’t work for AR15 IIRC. A big factor in long range accuracy - not precision - is the ability to see your shots. Modern WMLRFs and ballistics apps have spoiled us for sure, but no one can call wind very far, even with flagged known-distance targets. It’s what makes me keep going back to 556 SPR/DMR builds. Extremely low recoil over strings of fire, and you can correct quicker than other ELR optimized rounds. Granted, without the energy on target, but first-hand experience tells me that 77gr 556 being pushed hard will take the life of a human or coyote beyond 600yd - even further - but military engagements is way different than predator control/hunting. You’ll be well served by your build for many rounds. I still need to work up a load for these as well, I have a decent bit of Ramshot TAC and Varget left over ~12 pounds of each to try my hand at a MK262 Mod 1 clone.

Thanks man, I appreciate that!

Are you using it with the adapter for 24mm or direct threading the hub section? That bottom part is fully welded together, nothing should spin apart at all that isn't an adapter. That said if it is an adapter, some of them have jacked up thread pitches so they're either super loose or super tight. But if you hear anything rattling in the main body send it back.

@ I’m using the jmac 360 hub break, but that’s not the part that’s spinning, it’s the bottom of the can itself that those devices thread into, the part with all the serial number and what not engraved into it, I noticed it when trying to hand tighten the suppressor onto my ak, 😭 might have to send it back in if that’s no bueno

@@Colonel1Bravo thank you very much, glad the format worked well and you learned a little bit. Appreciate the comment.

@@Flewpygoober I went through the same thing on my APR and ended up swapping to a Surefire brake I found on sale. I figured I'd just stick with a pair of RC2s for 762 and 556...that didn't last. Kinda regret swapping because I ended up getting a M110A3 upper and run the PRG on it Honestly it's super expensive but looks the best and sounds the best of all my flow through cans. I Freedom Trading still has them in black and FDE and are offering a 200 store credit now. Wish they'd just do a discount instead. Hell they still have NT4 PRGs in too.

@MountLetheHellfire Oh shit! That 200 can go towards my MD. I have a mams now but I'd prefer an sf 2 port. My friend is a B&T dealer that can get me wicked deals but I think it's worth going full KAC on this one. Thanks for the info and detailed video. Definitely helped my decision 🤙🏼

@Flewpygoober Freedom gets them in pretty frequently, KAC MDs that is, didn't check what they had in stock but if nothing else you can get a new light or mount with it. I definitely want to try out a MAMS, thinking of doing a K3 build off of a Cartel SR25 upper and using one. Though I'd really prefer a K7 if they drop them as rumored next year

@MountLetheHellfire I’ve got an HTX Concepts/SR25 Cartel 6.5 CM upper that is getting the CQB version of this can. Barrel is 16 inch and I’m so stoked to try this out

Yeah good point! I've been meaning to take the SR25 APR out to test the 30 cal cans out

I haven't owned one so I cannot say for absolute certain, but with how well it handled high pressure 140gr FGMM 6.5CM, I think a piston gun with 308 wouldn't get gassed out. The KAC allegedly has a better flow through design than Hux cans, I cannot confirm that as I don't own a Hux can other than a 22LR, but take it for what it's worth.

@ thank you for responding sir and I enjoyed the video!

For sure man. I've been dealing with some personal stuff, but have a few more on this one especially since I've gotten to shoot it more.

@ we’ll be praying for you

Thanks homie!

@@jordanray7145 yeah it will! The collars are the same, obviously the bores are different. All of the 308 cans I tried went on 556 brakes: SFMB, SF4P

Thanks for watching man!

Lol yeah I keep using a hard C interchangeably. I have a few KAC SR25s videos up but I usually don't do reviews until I get several 1000s of rounds in or at least owned and used a weapon for a year or so consistently to get some thoughts out.

7-35. It's a Nightforce ATACR F1 with a Tremor 3

Nice man, congratulations, it is a great can for sure especially since a lot of places have them discounted almost down to 1500 to offset the NFA and transfer tax fees. Never had a SCAR 17 pretty sure getting the muzzle device off isn't too hard

@@MountLetheHellfire yep. The deal was too good to pass up. 1373 shipped. I think the barrel profile of the Scar can make issues for the new muzzle device. We’ll see. Glad to finally have a use for this Mams I bought a couple years ago.

@@i_onsWhy do you say the barrel profile can bring up some issues with the new muzzle device?

@ the profile of the barrel is thin enough that it usually requires a shoulder ring to index off of. I’ve had a few gunsmiths, d.wilson included, the told me they wouldn’t help me get a MAMS on the scar 17 because of it.

@@i_ons I appreciate the response, and I’m guessing its the same thing for the kac 3 prong?

Oh nice, that will be a good little package. Just don't be as careless as I was with the file or crowning took. It's tedious but won't take more than 30-40 minutes of going super slow and remeasuring

@@MountLetheHellfire ok I shall thank you! I still have to order the tools.

Yeah it's the external ratchet they use, just can't get right enough, though I was getting gas venting out of it on my 11.5 and 14.5 so maybe with 556 it just doesn't have the gas volume to vent right

I was very impressed by it I will probably get another

To me, suppressing 556 is just about extra hearing protection. With good ear protection (ideally doubled up) a can will get load 556 to very safe levels at your ear. Sure signature reduction too but the paper and steel I shoot at don't care about flash, dust kicking up, or sound.

Haha yeah true enough. I know folks do like the Mini cans and the SRBS 308 isn't the most faithful comparison either.

aren’t you the guy that wouldn’t use a 3prong/4prong with your rc3 lmao

@@zohairnaqvi9734 I have used a 3/4 prong with mine lmao

I'm probably going to order one too, I'm ready for the RC3 to disappoint me but I've enjoyed it. Then again I also Hydra mounts so maybe I'm dumb.

@@MountLetheHellfire i was really impressed with it at first until I got the SRBS’s in fwiw

I hope they make a SRBS in a mini.

I appreciate the kind words man! I love Sol, even though he is the reason I spend so much money. I need to get a SOT one day and get a postie SAW like he has for demonstrating the cyclic rate acceleration too. I mostly shoot at a public range, but I like that idea. I think a shotgun mic may work well from that distance, someone else suggested recording from the ejection port side too. May put all of that into effect once I get a few more cans in to compare against so it's not the same video again. Thanks for the feedback!

Ily long time bröther

Yeah the whole system - military contracts and price pressure aside - is overpriced but I still love it and it performs. I think if I had a straight up lemon I may not feel as strongly in favor. A few guys I shoot with recommended the same thing, Hornady Match or Gunner, I see that lucky gunner sells the latter in 200rd packs. Do they use small rifle primers? I had one box of Aguila do really well when I broke the rifle in then quickly it went to shit as I showed in the video. Some of that was me but not to that extent. I keep buying up the FGMM 140s when southern defense or bucking horse do sales on them, the brass is really good and is small rifle primed which is why I like it. I keep meaning to do a run of reloads to pick a recipe now that I have a big pile of brass, it'll save me a little over $1.30/Rd with Berger 140s in them

​@@MountLetheHellfire The Hornady American Gunner uses large rifle primers. I don't reload, but I whipped the calipers out and checked my brass to confirm. The aguila is like all I shot for like the first 600rd because I can only shoot 350yd at home and they worked fine on like 2MOA sized steel gongs or IPSCs, but at any real distance on small targets they're crap. For the same money you can get that American Gunner and of course I forgot about the Hornady "Match" with the same BTHP bullet. The 200 round cases are definitely the way to get the best value and that's what I've been doing. I'm going to snag some more of that today from Scheels and yes they use large rifle primers. I'm jealous of the reloading setup. I don't think I have the patience or the knowledge to do it, but it would be nice someday to dedicate some time to figuring it out and it would make the really good Berger stuff worth shooting, for sure. I'm surprised at how few videos I find on youtube of setups like ours. Appreciate the content, man.

Ah thanks for confirming. Shit, I may start to just buy the small rifle brass separate or try to trade my LRP and 6mm CM for SRP 6.5CM brass. Yeah for ringing gongs I don't mind, but shooting on paper causes a mental block in me since the shitty group is much more noticeable. I should just learn to ignore or only shoot at steel. I used to shoot a decent amount of competitions on active duty and got into reloading to offset the cost. The mid 2010s were the golden age I feel, all of the tech was really good and prices were still low. I learned on RUclips, I'd grab a RCBS Rock Chucker or Lyman turret and a set of good dies from Mighty Armory and a good scale if you ever got the bug to get into it. I run everything progressive with a lot of automation which is why I'm so anal about the primer pocket size. Last thing I need to do is blow up a stack of primers crushing it into the wrong hole 😂 And thanks man I appreciate that. I'm still getting the hang of this RUclips thing. I need to invest in a better camera setup for live firing soon

@@MountLetheHellfire Yeah shooting paper for groups turns me into an ammo snob - on steel it's way less important. Thankfully I much prefer shooting steel haha. But man don't make me go down this reloading rabbit hole 😂

Good point, was more focused on rushing through and getting the audio

I think I'm up to 9 or 10 now. Only have a handful more I'd really like to try out and then just chill. I'm going for a can per host and trying to avoid buying two of the same.

Thank you bröther 🗿🗿🗿

😂😂😂 yeah me neither

Will do my man! Hopefully I'll get out this weekend but I plan to do a separate review when I get a few 100 down it Oh dude I'm probably going to take the SF collar off of it and put it on my Mini Drake or M70 for sure. It's def not a can I'd enjoy baffle striking though 😂

@@MountLetheHellfire hahaha agreed, i sent my wasr out to gunsmith to make sure it was concentric, and I asked B&T reps about the end cap bore and they told me it is 10mm. gonna throw the surefire adapter on my polonium since I'm already in the SF ecosystem because of my RC3. i got mine for 950 otd via capitol armory, they had a free tax stamp deal on it so I jumped on that

Oh nice I saw Capital Armory had that deal I'm tempted to buy a SRBS 556 but I've given them way too much money this last quarter. I grabbed a Hux Flow 22 instead I'm at 30 days on Seems most of the 30 cal cans and muzzle devices are bored at 0.3900 to 0.4100. definitely some good wiggle room and if it was an end cap strike I'd live with it but if you blow an SRBS up it's game over 😭 new form 4 and everything. The only OCL can I have is an OCM5, I have too many SFs so likely won't do another 556 can except for maybe a RC3 Mini or SRBS/SRBSC 556. Next project will have me grabbing a Barrett Mk22 can 💀

Someone else commented they use Teflon, I've been using some copper high temp anti seize but I haven't had much issue. I'd definitely use RockSett instead of Loctite though if the muzzle device backs off. My Putnik always works itself off so I wouldn't mind some carbon locking lol

Nice man 🤙🏼 is it a regular Mk18 type clone? Do you use any tuneable BCG, gas tube, or is it all stock? I keep the RC3 on my FBI SWAT 11.5 and may keep the SB2 on the PS90 SBR

🤣 yeah I did. That's what I get for being a lazy bastard and using a drill gun.

Love music 😂

Weapons manufacturers are no better at naming things than in cybersecurity it seems. Everything is "modernized", "improved", or "next gen". The install is super simple, getting the nut threaded is the most pain in the ass part. It would've been simpler if the Draco was on its side instead of in the vice.

@@dave38x oh sick man, and thanks! I posted a follow up to this a week or so ago. Went with the Centurion Mk12 Mod 0 barrel after all. Just waiting on some glass and time to get out to get it broken in

@@rcguy77 thanks man! I think it's noticeable if you look for it but it depends on the environment, barrel length, and ammo selection but not too crazy. You can pick it up in the short clip I put towards the end I think I timestamped it. And even so, the RC3 is one of my favorite cans, the slightly louder tone is worth not having all the gas in my face. You'll be fine with the RC2 but if you have SBRs or crazy twist rate shit I'd get the SB2

@@MountLetheHellfire Thanks for the reply! My rc3 lives on my 14.5 since it's my only upper. But I'm looking into building an 11.5 in the future so I'll prob grab an SB2 for it :). Looking forward to your pt.2 video!

@@rcguy77 for sure man 🤙🏼 what 11.5 barrel you going with? Or are you doing a particular build? The 11.5 is a good length, I have a FBI SWAT clone with a heavy profile, def recommend.

@@MountLetheHellfire That's awesome! I'm pretty set on either an LMT 11.5 with their 9.25 monolithic rail. Or their Specwar 12.5. Not sure if the extra inch is really worth it over the 11.5 though

Definitely a bit more work to get one of these on, my Draco had a silly target crown on it and it was uneven and slightly non concentric. The Wolverine PBS1 will thread on easy and lock into the detent but if the FSGB is cooked or your barrel is messed up it won't matter what you put on it

@@MountLetheHellfire mine fsgb favors the left of center just slightly as far as zeroing goes. With calipers… I’m not sure if it’s the correct way or not but I have a .02 difference at the 3 o clock position looking at it from the front. I think I probably have the same situation going on I’m a lefty and I don’t need more gas to the face so I’m leaning towards the putnik

@@hailtothe_rooster1572 the cant is fine, usually it's done accidentally, sometimes on purpose if the RSB is also canted but doesn't affect much. It's more on the quality of the casting, some of them angle out a bit more and cause deflection of anything tightened down. I'd go for the facemount and square off the muzzle face with a crowning tool or a hand file and some sandpaper, can't beat the Putnik on an AKM at all

Thanks man I appreciate it! I'd give the folks at Centurion a call, they've done a few custom shop offerings in the past they keep on hand, they were super helpful. Or have the parts assembled by D Wilson or another really good high end gas gun builder. I was REALLY tempted to go with another OPS Inc collar on this since I have an OCM5 for my Mod H but the SF mount just gives better options overall, but a Mod 1 look with the collar is fine. It's a great sounding can

I need to grab a few Duramags, you're the second guy to bring them up

It's a great barrel, I'm very happy with mine, hoping to get it out in a few weeks when I get some down time. See how it does with some cheap 55, 62 and 77gr