Bare Necessities SBA4 Pistol Lower Build Kit With Adjustable Pistol Brace - OD Green This Complete Pistol Lower Build Kit combo comes with the SB Tactical adjustable SBA4 stabilizing brace and a Tactical Sport complete Mil-Spec buffer tube kit. It also includes an Always Armed 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 SBA4 Adjustable Pistol Stabilizing Brace -OD Green Tactical Sport Mil-Spec Buffer Tube Kit Always Armed Complete LPK SKU: BN-LBK-SBA4-04-ARMED-OD UPC: