V Seven Weapon Systems 2055 Lithium Aluminum Enlightened AR15 Receiver Set

Billet 2055 lithium/aluminum AR-15 upper & lower recievers Type III hardcoat anodized Upper weighs 5.8 OZ Lower weighs 6.4 OZ Lower ships with quick detach endplate (7075 T6 alum.) Advanced 2055 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. ENLIGHTENED 2055 UPPER is not compatible with Geissele MK8 Rails without minor fitting of the rail to the upper.