Knight's Armament SR-25 BUFFER TUBE, LONG CARBINE

Knight's Armament SR-25/M-110 BUFFER TUBE, LONG CARBINE

Long carbine buffer tube (receiver extension) from Knight's Armament, longer than a standard AR-15 carbine buffer tube.  Works with mil-spec dimensioned collapsible buttstocks.

Total length including threads: 8.0 inches