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JP Enterprises Short Lock 9mm Bolt Assembly (Black QPQ) w/ Short Stroke Silent Captured Spring System


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JP Enterprises Short Lock 9mm Bolt Assembly (Black QPQ) w/ Short Stroke Silent Captured Spring System


Machined to the same exacting tolerances as our bolt carriers, this second generation 9mm bolt assembly is an entirely new design that eliminates the need for a central mass (slug) to readily function with their 9mm JP Silent Captured Spring without compromising bolt weight and reliability. In fact, when combined with their JP Silent Captured Spring, you have the heaviest, most reliable 9mm operating system that dramatically reduces bolt bounce while improving accuracy.

The complete JP 9mm operating system is slightly heavier than the complete RRA bolt and buffer, some of the bolt mass having been transferred to the SCS in their system.

New to this revision of their bolt assembly is compatibility with their line of short-stroke Silent Captured Springs. This bolt assembly will provide reliable last-round lockback with any compatible receiver such as their GMR-15™.


  1. Reduced stroke length for faster firing impulse
  2. Designed for optimal function with JP Silent Captured Springs for a heavier operating system that reduces bolt bounce while improving reliability and accuracy
  3. Tighter firing pin channel to reduce pin wear
  4. High-energy tumble process offers a finer cosmetic finish

The 9mm Silent Captured Spring is a drop-in component that softens recoil and reduces cycling noise and vibration in your 9mm carbine. The result is a refined rifle that's a pleasure to shoot. Paired with their 9mm bolt assembly, you have the most reliable 9mm operating system available.

The 9mm Short Stroke Version provides the same reliable buffering as our other 9mm SCS models but with a shorter overall stroke. Designed for competitors looking for every edge, this model offers snappier cycling with even less felt recoil thanks to the shorter stroke.

Note that because of its shorter travel, a short-stroke Silent Captured Spring will not actuate the bolt catch on 9mm carbine receivers such as the GMR-15™. But, as their PCC stars always say, if you run your mag empty at a match, you've done something wrong. Plus, the superior cycling more than makes up for it.

More Information
Product Type Bolt
Manufacturer JP Enterprises Inc
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