A fully MIL-SPEC Nickel Boron coated AR-15 Bolt Carrier Group built to run hard, clean easy, and last. M16 cut carrier, Carpenter 158 steel bolt, magnetic particle inspected — everything correct, nothing cut short. 100% USA made.
FRT Compatible: M16 cut carrier is required for reliable function with the Partisan Disruptor FRT. This BCG meets that requirement. If you're building an FRT platform, see our Disruptor + HFRT Buffer Bundle — or add this BCG to complete the setup.
Specifications
Caliber
.223 Remington / 5.56 NATO
Finish
Nickel Boron
Carrier Cut
M16 Cut
Carrier Material
9310 Steel
Bolt Material
Carpenter 158 Steel
Extractor & Ejector
4140 Steel — Nitride Coated
Cam Pin
4140 Steel
Firing Pin
8740 Steel — Hard Chrome Finish
Gas Rings
MIL-SPEC
O-Ring
MIL-SPEC
Inspection
Magnetic Particle Inspected (MPI)
Origin
100% USA Made
Price
$159.99
Features
Nickel boron finish — harder, slicker, and easier to clean than phosphate or standard nitride
M16 cut carrier — required for FRT builds; compatible with all standard AR-15 platforms
Carpenter 158 steel bolt — MIL-SPEC standard, same spec used by military contractors
9310 steel carrier — high-strength alloy with excellent fatigue resistance
4140 steel extractor & ejector with nitride coating — added hardness and corrosion resistance
4140 steel cam pin — matched hardness to carrier for long service life
8740 steel firing pin with hard chrome finish — corrosion resistant, dimensionally stable
MIL-SPEC O-ring and gas rings — correct sealing and gas management from day one
Magnetic particle inspected — every bolt individually tested for surface and subsurface defects
100% USA made
Why Nickel Boron?
Nickel boron is harder and has a lower coefficient of friction than phosphate. That means less heat buildup, less fouling adhesion, and a BCG that wipes clean in seconds rather than minutes. It runs reliably with or without lubrication — important for high-rate-of-fire applications like FRT builds where the BCG cycles under greater stress and frequency than standard semi-auto use.
Combined with an M16 profile carrier and fully MIL-SPEC internals, this BCG is one of the most capable drop-in upgrades available for any mil-spec AR-15 platform.
FRT Compatibility
The Partisan Disruptor FRT requires an M16-profile BCG for reliable reset function. The M16 carrier tail provides the extended geometry that engages the Disruptor's reset lobe during the cycling stroke. A standard semi-auto carrier will not provide consistent reset. This BCG meets that requirement and is a direct recommended pairing for any Disruptor build.
-This is the ONLY USA made gun smithing tool, gun cleaning tool, building tool, disable tool on the market.
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Customer Reviews
Overall rating: 4.4 / 5 from 1569 reviews.
Easy to install and it worked flawlessly!
Ferny 7.5/5Verified
I ordered this thinking I would beat the next stupid ban. So the trigger arrived very fast, just a few days, and I didn't pay for the extra shipping charge for getting it faster. Wasn't needed in my case. This was so easy to install a blind person could do it. Then I took it to the range and I expected it not to work like it was described. OMG did my face light up! Burned up two magazines in less than 10 seconds I think. And is still safe, and it retains the semi auto, or one shot per pull capability. I'm buying more for my other AR's now.
Greg D.5/5
Second one i bought now and still flawless operation. Would recommend this product to anyone who likes to go through ammo.
Tim S.5/5Verified
It went great. Easy to install and it worked with all my stock parts.
Brian K.5/5Verified
It wasn't exactly what I was expecting but I gave it a try. The installation video sucks because I couldn't see what he was doing but I ended up getting it. You have to learn how to run it as there's a little bit of a trick to it but once you do that it's fun to use.
Matthew W.4/5Verified
Easy install, no problems.
Logan F.5/5Verified
This thing is more fun than a bucket of puppies
Andrew M.5/5Verified
First time using the Disruptor drop-in trigger I couldn't get it to work, even after swapping in an H2 buffer. This H3 heavy-duty spring combo finally did the trick. Rifle is an older S&W Sport II. Suppressor is SilencerCo Velos 556. Very happy with the result and looking forward to adding Disruptor FRT and this buffer/spring to at least two more rifles.
David E.5/5Verified
Super easily installation. Works flawlessly, not one hiccup out of the few hundred rounds I’ve gone through so far.
Ryley A.5/5Verified
Awesome and easy to install! I have a PSA 300blk and didn’t even need to change buffer weight to make it run great.
James M.5/5Verified
I usually wear proper shoes and stand correctly but the urge hit me n I headed out the door lol, amazingly reliable and a blast to shoot
Bobby B.5/5Verified
Third one from AR Takedown!!! This one is in a CMMG Banshee 45ACP
Richard S.5/5Verified
Had some initial issues with the trigger but customer service was easy to get ahold of and took care of me. Shipping was super fast, and everything is working as intended now. I wouldn’t think twice about ordering from them again.
Evan R.5/5Verified
Install was fairly straight forward, no clear directions on instalation but easy to figure it all out. Function test went well.
Joel L.5/5Verified
The FRT dropped right in and ran wonderfully! It cycled 22 rounds in roughly 2 seconds.
My son's first experience firing anything like this and he absolutely loved it.
I highly recommend this product for your TX22.
Jeremy O.5/5Verified
Easy to install, absolutely fun! Everyone that shoots it instantly start looking to buy one.
Chris L.5/5Verified
Best trigger on the market by far.
Dustin B.5/5Verified
Sorry folks you will never find the 45 cal SMG out in the wild.
Runs great with the Partisan Disruptor
David H.5/5Verified
Super easy to install works perfectly. I put this one in a ar9mm lower . I kinda like the push button now very smooth
Richard M.5/5Verified
Safe, Semi, FRT. Until you experience it, you just don’t know what it’s like. But once you do know, you’ll want more. An addiction that is backed by the Constitution. 2A for LIFE.
Jacob W.5/5Verified
Works perfect
Adam C.5/5Verified
Worked amazingly. Was everything I hoped it would be. Would definitely recommend these guys to anyone looking to purchase firearms accessories. Had a couple small order issues in the past and they were handled very quickly and expertly. As a result I try to give them as much of my business as possible.
Cory K.5/5Verified
Super easy to install, runs smooth and without failure in a completely stock $500 American tactical AR, there are plenty of videos showing how to install it. Would and am buying this trigger kit again, and pairing it with a lighter spring kit, there isn’t any weird quirks with it, I simply installed it with some oil and my factory pins and springs and it worked without polishing or any other modifications. Super happy with it!
Joshua B.5/5Verified
Straight drop in, no modifications. Ran great no issues yet
Kolton R.5/5Verified
Dustin B.5/5Verified
All the literature online made it extremely easy to install. In my opinion this is the best one.
Neville H.5/5Verified
Functioned fantastically. I absolutely recommend a heavier buffer. I have a Ruger AR lower and it fit perfectly. Really really enjoys the metal mags. Had loading issues, disappeared when I swapped to metal mags. Selector switch works slightly better than original. I used a extra spring I had laying around and got an H3 buffer. Make sure you have the full auto BCG or this product will not function.
Jordan K.5/5Verified
I ended up needing something slightly lighter to run the G Lever FRS, but the H2.5 is probably a good option for a suppressed build with more back pressure
Chris K.4/5Verified
Had to do a minor tweak to tappet wire but other than that it was a drop in kit. Seems to be made of quality steel. We all are now having great fun with it.
Brenda L.5/5Verified
Trigger worked perfect. Only thing I had to do was get a h3 buffer (heavy) tube and it was flawless. Dumped 2 mags in a matter of seconds.
David N.5/5Verified
Works flawless when you have a h3 buffer and im going to buy 5 more 😆 🤣
Tim S.5/5Verified
Works great!
Justin G.5/5Verified
Love it!!!!, Works great!!!
Corey L.5/5Verified
My first ARC-Fire ran like a champ! I never had a hiccup or problem, and everyone on the range stared like I was a criminal...🤣 It was the V1, and man I was happy. Then all of a sudden...
I watched a video that showcased the ARC-Fire V2, with a 0-45°-90° ambi selector, and I had to have one. After all, it was going in my HK MR556 A4, and it has the markings on the lower for a 0°-45° selector, and I, of course, wanted it to match. So I bought one...
While visiting AS Designs website, I noticed they sold HK style selector levers for their ARC-Fire V2. So I bought some...
You CANNOT go wrong with this company! Their products are, in my and many others opinion, the best FRT on the market today! Just go to YouTube and pull up a 'Juicy Media' video, and he demonstrates a bunch of different brands of FRT and explains the pros/cons of the others, and explains why he prefers AS Designs!
5 MF'ing ☆'s~!!!
Joel J.5/5Verified
Works great with a h3 buffer, didn’t jam once
Nate L.5/5Verified
Simple to install, and fun to shoot
Andrew B.5/5Verified
Extra fast shipping, and price was below average market cost. Easy installation. I would recommend this FRT to anyone looking.
Shelby S.5/5Verified
Super easy install. Fast shipping
Richard S.5/5Verified
This enhanced semi-auto trigger is amazing the install was easy the function is great the only thing would be you need a t10 tool of your own to hold the other side. But overall 10/10 this mad my cheap Anderson ar turn heads!!!
Tayte C.5/5Verified
Crazy fun and runs like butter
Dochee T.5/5Verified
Customer Reviews
Works as advertised
John H.5/5Verified
I purchased 5 or these BCG. I installed them into proven setup weapons systems as an upgrade. They all failed to function. Every single one. I have been very satisfied with the other items I've purchased here, but these I would definitely skip. The don't pick up rounds, they fail to extract, they won't seat into the chamber. Just some of the problems these had.
A S.1/5
I love the finish. Its far superior to the regular BCG. I was using. It also makes my partisan trigger system work flawlessly. Highly recommend.
