Aero Precision AR15/M4 Lower Parts Kit

Aero Precision AR15/M4 Lower Parts Kit. Includes: Trigger, Hammer, Trigger Spring, Trigger/Hammer Pin, Hammer Spring, Disconnector, Disconnector Spring, Bolt Catch, Bolt Catch Buffer, Bolt Catch Roll Pin, Bolt Catch Spring, Magazine Catch Body, Magazine Catch Spring, Magazine Catch Button, Takedown & Pivot Pin, Takedown/Pivot Spring, Takedown/Pivot Detent, Buffer Retainer, Buffer Retainer Spring, Safety Selector, Safety Selector Spring & Detent, A2 Pistol Grip, Pistol Grip Screw, Pistol Grip Screw, Pistol Grip Lock Washer, Trigger Guard & Roll Pin, #4-40 set screw.