Sons of Liberty Gun Works x FCD LRF Billet Ambi Lower Receiver

The SOLGW x FCD LRF is a billet lower receiver from Sons of Liberty Gun Works, a collaboration with FCD. It keeps the signature flared magwell and ambidextrous controls of the design and adds six key improvements. The support ring for the receiver extension is enlarged, the beavertail contour is modified to fit a wider range of pistol grips, and the lug fitment is tightened.

The trigger pocket is enlarged, the selector stops are beveled, and the bolt catch is held with a roll pin. Taken together, those changes help the lower blend cleanly with a range of uppers, improve parts compatibility and make maintenance simpler, while the proven layout underneath stays the same. For a builder who wants an ambidextrous lower with a flared magwell, this is a refined version of a known design.