Aero Precision M4E1 Stripped Lower Receiver Multi Cal Black - APAR600001C

Aero Precision M4E1 Lower

The Aero Precision M4E1 Complete Lower Receiver with threaded bolt catch roll pin; integrated trigger guard; upper tension screw; threaded takedown pin detent recess; increased magwell flare; 7075-T6 aluminum material; and anodized black finish.

The Aero Precision Complete Lower M4E1 with a custom-engineered design offers features which not only challenge much more expensive billet options, but also simplify the assembly process for the at-home builder.

Machined from 7075-T6 Aluminum and compatible with all Mil-Spec AR15 parts, this lower boasts several improvements, including a threaded bolt catch roll pin which allows for simple installation of the bolt catch and protects the finish from damage during installation (pin included; 1/16" Hex Key required for assembly); anintegrated trigger guard that eliminates the possibility of breaking the trigger guard tabs, resulting to a stronger more rigid platform to build upon; and an upper tension screw that allows users to fine tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the Aero Precision M4E1 Lower receiver. This provides a tight fit with any standard AR15 upper receiver.

Other improvements include a threaded takedown pin detent recess that allows users to easily install the takedown pin detent and spring with the use of a 4-40 set screw, as well as an increased the magwell flare for quick and efficient magazine changes.

The Aero Precision Complete Lower M4E1 is marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.