ERGO PISTOL CALIBER CARBINE BUFFER SPACER (9MM, .40, .45)

The ERGO Pistol Caliber Carbine Buffer Spacer is designed for use with carbine length buffers on 9mm AR firearms. Helps to limit rearward travel and lessens the chances of breaking bolt catches. Machined from 6061-T6 aluminum. For 9mm, .40, and .45 calibers.