The SOLGW x FCD LRF Billet Lower Receiver (brand part no. L-FCD-A-BLK) is a collaboration between Sons of Liberty Gun Works and Forward Controls Design, built around the FCD LRF’s signature flared magwell and ambidextrous controls. SOLGW adds six refinements to the base FCD design, including an enlarged receiver extension ring, a modified beavertail, and tightened lug fitment, to create a seamless fit with a wider range of AR uppers. The multi-caliber lower simplifies maintenance and upper compatibility without compromising the battle-proven ambi layout it’s built from. Among rifle lowers, this billet receiver suits builders who want a duty-grade ambidextrous lower that mates cleanly with premium uppers.

Key Specifications

• The caliber compatibility is multi-caliber, standard for a stripped AR-pattern lower.
• The action type is semi-automatic.
• The magwell is flared for faster magazine changes.
• The controls are ambidextrous, matching the FCD LRF’s original layout.
• The receiver extension ring is enlarged for improved upper-to-lower fit.
• The beavertail is modified from the base FCD design for a better hand fit.
• The lug fitment is tightened to reduce play between upper and lower.
• The receiver is machined from billet aluminum.

Frequently Asked Questions

Is this lower ambidextrous? Yes, it retains the FCD LRF’s ambidextrous control layout.

What caliber is this lower built for? It is a standard multi-caliber AR-pattern lower, compatible with any AR-15 upper in a caliber that shares the platform’s bolt face and magazine well dimensions.

Does it ship as a complete lower or stripped? This listing is the stripped billet lower receiver only.

Buy the SOLGW x FCD LRF Billet Lower Receiver

A refined, ambidextrous billet lower built for a seamless fit with your chosen upper is exactly what this SOLGW x FCD collaboration delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.