JP Enhanced 9mm AR Bolt
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JP Enhanced 9mm AR Bolt
JPBC-9MMA | 9mm AR Bolt Carrier Group
JP Enhanced 9mm AR Bolt is machined to the same exacting tolerances as JP bolt carriers. However, this second generation 9mm bolt assembly is an entirely new design. It eliminates the need for a central mass (slug) to readily function with the JP 9mm Silent Captured Spring. All of this without compromising bolt weight and reliability. In fact, when combined with the JP JPSCS-9MM (JP Silent Captured Spring for 9mm), you have the heaviest, most reliable 9mm operating system. Because of these features, it reduces bolt bounce while improving accuracy.
JP Enhanced 9mm AR Bolt is .9 oz. heavier than the Rock River Arms 9mm bolt with its central mass removed. When used with the Silent Captured Spring, the complete JP 9mm operating system is slightly heavier than the complete RRA bolt and buffer. Keep in mind, some of the bolt mass having been transferred to the SCS in our system.
Surface and Finish
Just as critical as the design is the robust finishing process of the FMOS carrier. It receives a roller-burnish of its bore for frictionless operation. Because of this, it eliminates 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. This results in a rock-hard surface with great lubricity. This is hands-down the best designed and highest quality general purpose carrier on the market. Lastly, when properly lubricated, a JP operating system will make your rifle feel like it’s cycling on ball bearings.
Monmouth Reloading carries the JP Silent Captured Spring. Also, check out our extensive 9mm AR Barrel inventory. If you need more parts or looking to upgrade your AR15, view our full line of AR Parts.
Manufacturer: JP Enterprises
Part #: JPBC-9MMA
Bolt Carrier Group
Use of this bolt requires a 9mm Silent Captured Spring or 9mm buffer and spring. It will not function with standard AR-15 buffer components.
The JPBC-9MMA is compatible with both Colt SMG-style magazines and Glock pistol magazines.
The JPBC-9MMA is also compatible with our JP side-charging uppers.