JP Silent Captured Spring Heavy Gen 2 AR15

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MSRP: $188.95
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JP Silent Captured Spring Heavy Gen 2 AR15

GEN 2 Silent Captured Spring (patented) for AR-15-type rifles

H2 Buffer Version

Includes spacer to allow for installation in both carbine- and rifle-length buffer tubes.

Recommended Use: 

  • Short-barreled rifles (SBRs)
  • Suppressed weapons
  • Rifles recommended to use an H2 buffer
  • Select-fire rifles
  • Piston-operated rifles


The JPSCS2-15 will not function with older Primary Weapon Systems (PWS) bolt carriers. The design of the carrier will prevent the rifle from cycling.

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3 Reviews

  • 5
    Great alternative to an H2 buffer

    Posted by Unknown on 23rd Sep 2021

    This spring is literally silent, can't hear any noise from it while the action cycles. Can be a pain to remove if you leave the buffer retainer installed in your lower.

  • 5
    Jp on a 10.5 barrel suppressed

    Posted by Austin on 23rd Jul 2021

    I run this thing on a 10.5” barrel with a .70 gas block suppressed. I previously had the armaspec which worked ok, but this one is just better. It works wonders and helps the back pressure by slowing the bolt down. Definitely recommend for shorter barrels or a suppressed rifle. Super smooth, worth the extra money.

  • 5
    Silent Capture Heavy

    Posted by Blake on 3rd Dec 2019

    The silent capture spring is a must have when shooting suppressed. It makes the rifle shoot incredibly solid and take away the "twang" and "bounce" from a traditional buffer and spring.

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