Lower Parts Kit

Lower Parts Kit Description

This Lower Parts Kit fits all AR-15 patterned firearms. This kit includes all the necessary lower receiver subcomponents to build an AR-15.  The “Enhanced” version designates the inclusion of our Enhanced Retained Buffer Retainer Spring. This spring uses radial friction to keep it pressure fit in the lower receiver, preventing it from shooting out when assembling or disassembling the firearm. To install, simply twist while pushing the larger end into the buffer retainer hole. To uninstall, simply twist while pulling out. The Mil-Spec version comes with a standard buffer retainer spring. The kit is easy to install and is compatible with all Mil-spec AR-15 lower receivers.