Includes: GI Grip Buffer Retainer Trigger Guard Trigger Guard Roll Pin Safety Selector Bolt Catch Spring Bolt Catch Retainer Bolt Catch Bolt Catch Roll Pin Mag Catch Take Down / Pivot Pin Spring x 2 Take Down / Pivot Pin Detents x 2 Mag Catch Spring Mag Release Button Pivot Pin Disconnector (MIL - SPEC) Trigger (MIL - SPEC) Trigger Spring Grip Screw Star Washer Selector Spring Selector Detent Trigger / Hammer Pins (GI) x 2 Take Down Pin Disconnector Spring Hammer Spring Hammer (MIL - SPEC)