Our M5 (.308) lower parts kit helps you to build a custom .308 AR from the ground up. Mil- spec dimensions and coating ensure the highest quality and correct component interface. - Features: - Aero Precision M5 (.308) Complete Lower Parts Kit - Our custom takedown and pivot pins are made to work with our M5 lower. They will work with DPMS-pattern lowers as well but will stick out further. - Includes: - Takedown/pivot Spring - Takedown/pivot detent - Trigger/hammer pin - M5 .308 Takedown pin - M5 .308 Pivot pin - M5 .308 Bolt Catch - Bolt Catch Spring - Bolt Catch Buffer - Bolt Catch Roll pin - Safety Selector - Safety Selector Spring - Safety Selector Detent - Buffer Retainer - Buffer Retainer Spring - A2 Pistol Grip - Pistol Grip Screw - Pistol Grip Lock Washer - Trigger Spring - Hammer Spring - Disconnector Spring - Magazine Catch Body - Magazine Catch Spring - Extended Magazine Catch Button - Hammer - Trigger - Disconnector