The KynSHOT Hydraulic Recoil Buffer 9mm is a specially engineered KynSHOT for the 9mm PCC application. Designed in cooperation with Blitzkrieg Components, LLC. to work in PCC builds with 3.5"- 7.5" barrels, either suppressed of unsuppressed and with all common 9mm loads. This buffer has proven itself in the harsh arena of PCC competition and is the choice of many of the top ranked shooters in the world. The KynSHOT uses patented hydraulic shock absorption technology to dampen the impact of the bolt at the rear of its travel and to dampen the forward impact of the buffer's weight as it chambers the next round. Its weight and length have been optimized for the 9mm application so that it runs reliably, softens recoil, smooths out the action, and stops just behind the bolt catch. FeaturesDrop-in replacement Reduce felt recoil Improve reliability