This complete MOE Pistol Lower with SB Tactical SOB 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, Black Magpul polymer trigger guard, Black Standard Carbine Buffer Un-notched Hammer compatible with 9mm use Caliber: Multi FEDERAL FIREARMS LICENSE REQUIRED!! Please read disclaimer before ordering. Not for sale in CA, CT, MA, MD, NJ, and NY