* Protection from the harmful battering encountered when the operating rod whacks the front of the receiver.
* Two piece design use One Or Two for more recoil dampening.
* Bolt Stays Locked Back on last shot.
* Pre Fit.
* Other designs like Buffer tech fit poorly and require fitting.
* A must for protecting your Scope, Receiver and Factory buffer. Protects receiver also.
*Made for us by Wilson Combat