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JP Enterprises Gen 2 9mm Heavy Short Stroke Silent Captured Spring - 5H5 Heavy

Silent Captured Spring

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JP Enterprises Gen 2 9mm Heavy Short Stroke Silent Captured Spring - 5H5 Heavy


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 their 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 unless you have the current version of their 9mm bolt assembly. But, as their PCC stars always say, if you run your magazine empty at a match, you've done something wrong. Plus, the superior cycling more than makes up for it.


Package includes spring and instruction sheet.



  • Simple, drop-in installation
  • Quieter, smoother operation thanks to reduced vibration and friction
  • Softened recoil, both felt and actual
  • Completes the roller-bearing-like perfection of the JP operating system
  • Sufficient deadblow effect to avoid bolt bounce
  • Mass tunable via alternate masses
  • Enhanced reliability and durability when shooting hotter loads
  • Best SCS option for extreme competition use
  • Weight: 14.1 oz.
More Information
Product Type Silent Captured Spring
Manufacturer JP Enterprises Inc
Caliber 9mm

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