Sons of Liberty Gun Works LOYAL9, Stripped Lower Receiver, Semi-automatic, 223 Remington/556NATO, Anodized Finish, Black LOYAL9 SOLGW M4 Milspec Stripped Lower. Loyal 9 logo and Safe-Semi-Auto Selector markings. Forged from 7075-T6 Aluminum. Black Hard Coat Anodized Finish. M16 pocket cutout. Fully machined to remove flash markings from forging.