Aero Precision's M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface. The rear takedown pin detent hole is threaded for a 4-40 set screw; bolt catch is threaded for a screw pin (no roll pin needed); selector markings work with 45, 60, or 90 degree standard safety selectors; and there is no gap with aftermarket pistol grips. The M5 308 stripped lower has an integrated trigger guard, and includes a Nylon-tipped tensioning set screw.

Compliance Notice (Washington Residents):
This item is a frame or receiver only and is not a complete or operable firearm. Washington law regulates the manufacture, importation, distribution, sale, and offer for sale of “assault weapons” as defined in RCW 9.41.010 and RCW 9.41.390.

A frame or receiver standing alone is a part of a firearm. Any future assembly must comply with all applicable federal, state, and local laws. Manually operated firearm configurations (e.g., bolt, lever, slide, pump) are excluded from the statutory definition of an “assault weapon.”