AR15/M4 Lower Parts Kit

Our lower parts kit helps you to build a custom AR15 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, pistol grip or trigger guard.

Includes:
Takedown/pivot Spring
Takedown/pivot detent
Takedown pin
Pivot pin
Bolt Catch
Bolt Catch Spring
Bolt Catch buffer
Bolt catch roll pin
Safety Selector
Safety Selector spring
Safety Selector detent
4-40 Set Screw (for threaded takedown pin detent hole)
Buffer retainer
Buffer retainer spring
Magazine catch body
Magazine catch spring
Magazine catch button