Tactical Sport SBA3 Pistol Lower Build Kit With Adjustable Pistol Brace - Flat Dark Earth This Complete Pistol Lower Build Kit combo comes with the SB Tactical adjustable SBA3 stabilizing brace in FDE and a Tactical Sport complete Mil-Spec buffer tube kit. It includes a Tactical Sport complete lower parts kit. Add 80% lower receiver from this category to complete your 80 percent lower build kitAdd 100% lower receiver from this category to complete your lower build kitAdjustable Pistol Lower Build Kit Parts: SB Tactical SBA3 Adjustable Pistol Stabilizing Brace - FDE Tactical Sport Mil-Spec Buffer Tube Kit Tactical Sport Complete LPK SKU: LBK-SBA3-02-SPORT-FDE UPC: