Have more control and get faster follow up shots with the Kynshot Hydraulic Buffer for AR-10 Rifle. This buffer is a proven system that has seen heavy use with civilian competition shooters, law enforcement personnel and the US Armed Forces. This buffer replaces buffers that are 3.25" in length. The buffer is designed for 7.62mm/.308 cal AR style rifles with an AR-10 length collapsible stock tube. It works with Armalite, LMT, SigSauer, Noveske and LWRCI .308 rifles with collapsible stocks and any others that use the longer collapsible stock tube.