JP AR-15 SCS Silent Captured Recoil Spring, Standard Mass Version, Gen 2

GEN 2 Silent Captured Spring (patented) for AR-15-type rifles Includes spacer to allow for installation in both carbine- and rifle-length buffer tubes. GEN 2 SCS Improvements: New aluminum guide rod cuts overall weight Heavier masses translate to more buffering mass and chance of bolt bounce Full correspondence between SCS masses and H1, H2 and H3 buffers Interchangeable buffers allow conversion between AR-15 and AR-10 models (and vice versa) Recommended for rifles with an adjustable gas block. For rifles without an adjustable gas block, the kit with extra springs is recommended: https://arnzenarms.com/product/jp-rifles/ar-15/3-gun-gear/3-gun/competition/jp-silent-captured-recoil-spring-kit-223-556-ar