JP Silent Captured Spring 9mm Full Stroke | Enhanced | GEN 2

9mm Silent Captured Spring

The 9mm Silent Captured Spring (SCS) is a drop-in component designed to significantly improve your carbine’s shooting experience. It softens recoil, reduces vibration, and minimizes operating noise for a smoother, more refined performance.

Paired with our 9mm bolt assembly, it delivers one of the most reliable 9mm operating systems available.

Enhanced Version

The Enhanced version retains the same buffering mass as the standard model while slightly increasing the overall bolt mass. It also provides additional capacity for weight tuning if needed.

The result:
even softer recoil thanks to increased delay in the blowback system.

This version is especially recommended for:

• hotter ammunition

• setups using non-JP bolt assemblies

• configurations requiring removal of a central mass

In these cases, the added weight of the SCS helps compensate for the loss of reliability caused by reduced mass.

Package Includes

• 9mm SCS spring

• Instruction sheet

Features

• Simple drop-in installation

• Quieter, smoother operation

• Reduced vibration and friction

• Softened recoil (felt and actual)

• Deadblow effect to prevent bolt bounce

• Tunable mass with alternate weights

• Enhanced reliability and durability with hotter loads

• Ideal for use with non-JP 9mm bolt assemblies