Aero Precision AR15 X15 Stripped Lower Receiver, Gen 2 - Black

Gen 2 Improvements

    Upper Tension Screw - Allows users to fine tune the fit of the upper and 
lower receiver through the use of a nylon tipped tensioning set screw inserted 
in the grip tang of the lower receiver. This provides a tight fit with any 
standard AR15 upper receiver.
    Increased Magwell Flare - Allows for easier insertion of magazines and 
provides a sleeker look.

Includes:
    Stripped AR15 Lower Receiver, Gen 2
    Nylon tipped tensioning set screw