Everything about Buy Ruger SR22 PBT 22LR Threaded Barrel Black For Sale
The receiver extension and the extra spacer piece immediately at the rear of the receiver—which sports QD sling swivel sockets on both sides—are aluminum. The spacer has a vertical part of Picatinny rail onto which the receiver extension is clamped. The clamp is steel, as well as lockup is sturdy.The next Variation from the Computer Carbine not