V Seven Enlightened 2055 Lithium/Aluminum Ar-15 Upper Receiver ENLI UR-LIT. V Seven crafted these AR15 Upper Receivers from billet 2055 lithium/aluminum that is lightweight yet tough while also having greater corrosion resistance than standard 7075 T6 aluminum. For even further protection against rust and corrosion the V Seven Enlightened 2055 AR-15 Upper Receiver is Type III hardcoat anodized. Install a V Seven 2055 Enlightened 5.8oz AR-15 Upper Receiver to improve nearly every aspect of your rifle and shooting experience. Specifications for V Seven AR-15 Enlightened Upper Receiver 2055 Lithium/Aluminum: Manufacturer: V Seven Caliber: 5.56x45mm NATO .223 Remington Finish: Anodized Color: Black Gun Type: Rifle Gun Model: AR-15 Weight: 5.8 oz Additional Features: 2055 Lithium/Aluminum Condition: New Magazine Included: No Features: Billet 2055 Lithium/Aluminum Ar-15 Upper Receiver Type Iii Hardcoat Anodized Weighs 5.8 Oz 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. Enlightened 2055 Upper Is Not Compatible With Geissele Mk8 Rails Without Minor Fitting Of The Rail To The Upper. Package Contents: V Seven Enlightened 2055 AR-15 Upper Receiver What firearm models does the manufacturer say V Seven AR-15 Enlightened Upper Receiver 2055 Lithium/Aluminum is compatible with? The manufacturer suggests that V Seven AR-15 Enlightened Upper Receiver 2055 Lithium/Aluminum is compatible with AR-15V Seven ENLI UR-LIT: Enlightened 2055 Lithium/Aluminum Ar-15 Upper Receiver