JP Rifle Small Frame FMOS Bolt Carrier
For police duty or any application where absolute reliability is the main criteria, our 416 stainless steel Full Mass Operating System (FMOS™) carrier design is the top of the line. The JPBC-2 has every strength an operator expects from a Mil-spec. carrier matched up with improvements born from decades of shooting and engineering experience. Heavier than a standard .308 carrier, our large-frame JPBC-5 is the solution for rifle needing more mass regulation.
Designed with extended forward assist serrations and a dust cover notch, our FMOS™ carriers also feature a 100% increase in bearing surface for smoother operation, improved alignment and lower wear in the upper receiver as well as a longer Mil-spec. cocking pad for optimal reliability.
Just as critical as the design is the robust finishing process of the FMOS™ carrier, which receives a roller-burnish of its bore for frictionless operation, eliminating the peeling chrome common to standard Mil-spec carriers. Then, the exterior bearing surfaces are polished before the carrier undergoes our state-of-the-art, multi-vendor QPQ (Quench-Polish-Quench) process that results in a rock-hard surface with remarkable natural lubricity. This is hands-down the best designed and highest quality general purpose carrier on the market, and when properly lubricated, a JP operating system will make your rifle feel like it's cycling on ball bearings.
Although we strive to provide an accurate representation of the product via description and photos; all pictures are for illustrative purposes only. Photos displayed on this website may be different variants, colors, or contain optional items that are not included in the default configuration of that item.
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