Aero Precision Lower Receiver Gen2 (APAR501101C) is machined to mil-spec dimensions, their lowers work with standard AR15 components and ensure the highest quality with a correct component interface.

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.