Aero Precision M5 Lower Parts Kit For AR10 Magpul MOE Grip in Black M5 (.308) Takedown Pin M5 (.308) Pivot Pin Takedown/Pivot Detent Takedown/Pivot Spring M5 (.308) Bolt Catch Bolt Catch Buffer Bolt Catch Roll Pin Bolt Catch Spring Extended Magazine Catch Button Magazine Catch Body Magazine Catch Spring Buffer Retainer Buffer Retainer Spring Safety Selector Safety Selector Spring Safety Selector Detent 4-40 Set Screw Trigger Hammer Trigger Spring Trigger/Hammer Pins Hamme