BUY SIERRA MATCHKING .22 CALIBER .224 53GR FOR DUMMIES

The receiver extension and the extra spacer piece right driving the receiver—which sports QD sling swivel sockets on either side—are aluminum. The spacer incorporates a vertical section of Picatinny rail on to which the receiver extension is clamped. The clamp is steel, and also the lockup is durable.Remember to never clearly show up to either