The kynshot recoil buffer is a hydraulic buffer system designed and optimized to fit the h&k mr762 platform.The rb5030 can only be paired with the h&k mr762, and is a simple drop-in replacement for all buffer systems on the market.The buffers patented technology absorbs the recoil impulse from the bolt carriers rearward motion, preventing bolt bounce as a new round is chambered.The rb5030 reduces felt recoil by 30%, improving the shooters overall accuracy and eliminating muzzle flip.Material: Stainless Steel