These rings are located on the rear portion of your bolt. They create a seal inside the bolt carrier to catch gases. They use the built-up pressure to unlock the bolt after a round is fired.
Our AR-15 Key Lock carriers are Nitride heat treated with a stainless-steel gas key. The gas key fits into the dove tail at the front of the carrier and then secured by a staked screw. They include a nickel-plated bolt assembly and our patented Roller Cam Pin.
Our DI Key-lock carriers are Nitride heat treated with a stainless-steel gas key. The gas key fits into the dove tail at the front of the carrier and then secured by a staked screw.
Our Carrier is great for those shooters who want more than a standard DI Carrier. With the addition of the notched gas key, you can easily install a Roller cam pin so that your firearm never never suffer premature cam slot wear.
Our Milspec Enhanced Bolt Carrier Group is great for those shooters who want more than a standard Mil-Spec carrier. With the addition of the Roller cam pin, your rifle will never suffer premature cam slot wear.
Our carriers are machined with a mechanical key built in and positioned behind the cam pin. As a result, this prevents carrier tilt and eliminates the possibility of the key becoming misaligned.
Our piston bolt carriers are machined with a mechanical key built in and positioned behind the cam pin. As a result, this prevents carrier tilt and eliminates the possibility of the key becoming misaligned. All gas piston carriers feature nickel plated bolts, extractors, and chrome firing pins.
Our piston bolt carriers are machined with a mechanical key built in and positioned behind the cam pin. As a result, this prevents carrier tilt and eliminates the possibility of the key becoming misaligned. All gas piston carriers feature nickel plated bolts, extractors, and chrome firing pins.
Our carriers are machined with a mechanical key built in and positioned behind the cam pin. As a result, this prevents carrier tilt and eliminates the possibility of the key becoming misaligned. All piston carriers feature nickel plated bolts, extractors, and chrome firing pins.
Designed specifically for the PSG .22 family of firearms, this direct blow back bolt is billet machined out of 4140 steel and nitride heat treated for corrosion resistance.
OEM replacement detent. Designed specifically for the POF-USA .22 LR Rimfire family of firearms, this part keeps tension on the charging handle while it is in the bolt carrier group.
OEM replacement spring. Designed specifically for the POF-USA .22 LR Rimfire family of firearms, this part keeps tension on the charging handle while it is in the bolt carrier group.
OEM replacement PSG 22 recoil spring rod. Designed specifically for the POF-USA .22 LR Rimfire family of firearms, this stainless-steel part retains the recoil action spring inside the spring key on top of the bolt carrier group.
OEM replacement guide rod housing. Designed specifically for the POF-USA .22 LR Rimfire family of firearms, this part houses the guide rod assembly and recoil spring on top of the bolt carrier group.
OEM replacement Roll Pins. Designed specifically for the POF-USA .22 LR Rimfire family of firearms, these pins keep the recoil housing, guide rod assembly, and recoil spring secured to the top of the bolt carrier group.
The Revolution BCGs come in either a Piston or DI configuration. The Piston version comes standard in all Revolution PD Firearms. The DI version comes standard in all Rogue, Prescott, and Revolution DI Firearms.
The bolt carrier is responsible firing a loaded cartridge when the trigger is pulled. The Bolt Carrier will then eject the spent casing and load a fresh cartridge. The AR-15's BCG is considered a rotating bolt mechanism.
