Tactical Superiority's .308 lower parts kit includes all of the parts needed to assemble a stripped lower receiver, Takedown Pin, Pivot Pin, Takedown Pin Detent (2), Takedown Pin Detent Spring (2), Bolt Catch, Bolt Catch Plunger, Bolt Catch Screw, Bolt Catch Spring, Buffer Retainer, Buffer Retainer Spring, Hammer & Trigger Pin (2), Hammer Spring, Trigger Spring, Disconnector, Disconnector Spring, Magazine Catch, Magazine Catch Spring, Magazine Catch Button, Trigger Guard Assembly, Trigger Guard Pivot Spring Pin, Safety Selector, Safety Selector Detent, Safety Selector Detent Spring, Pistol Grip Screw, Pistol Grip Screw Lock Washer, Hammer, Trigger, Pistol Grip (Black). NOTE: This kit will not fit Armalite, DPMS GII, LMT, LWRC or POF lower receivers.