This complete Palmetto State Armory Pistol Lower with SB Tactical SBA3 Adjustable Brace is fully assembled and ready for your Pistol Upper! Receiver is Machined from 7075-T6 Aluminum Forgings Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2 7075 Receiver Extension Magpul Grip, Flat Dark Earth SB Tactical SBA3 Adjustable Brace, Flat Dark Earth Magpul Trigger Guard, Flat Dark Earth Standard Carbine Buffer Enhanced Polished Trigger Group (EPT) Caliber: Multi