GC_UPC SOLGW Forward Controls Design Ambi AR-15 Lower Receiver $322.13 FCD-AMBI-LR show more like this 19.95 Cheaper Than Dirt GC_UPC Sons of Liberty Gun Works / Forward Controls Design Billet Ambi AR-15 Lower Receiver $330.00 FCD-AMBI-LR show more like this Calculated in Cart Primary Arms