Billet 2055 Lithium/Aluminum Ar-15 Lower Receiver Type Iii Hardcoat Anodized Weighs 6.4 Oz Ships With Quick Detach Endplate (7075 T6 Alum.) Advanced Lithium/Aluminum Alloy Is Lighter, Stronger, More Rigid, & Has Greater Corrosion Resistance Than Standard 7075 T6 Aluminum V Seven Recommends All Pins, Springs, Screws, & Components To Be Installed With A Quality Lubricating Oil/Grease. Mfg: V Seven Weapon Systems
