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.

This lower parts kit does not include the fire control group or pistol grip.

• 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
• 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
• Magazine Catch Body
• Magazine Catch Spring
• Extended Magazine Catch Button