JL Billet Lightweight Billet Upper Receiver AR 15 Black. This upper has weight reduction cuts that give it a look that stands out among the rest and are designed to match our billet lowers to ensure a superior matched set for your next build. These can be purchased in raw aluminum or Type III hard black anodize. 7075 T-6 Aluminum Type III Hard Black Anodize Precision 5 Axis CNC Machined 6.96 oz. Specifications for JL Billet AR 15 Lightweight Billet Upper Receiver: Manufacturer: JL Billet Color: Black Finish: Type III Hardcoat Anodized Fabric/Material: 7075-T6 Aluminum Caliber: 5.56x45mm NATO Gun Make: DPMS Gun Model: AR-15 Condition: New Country of Origin: USA Weight: 0.44 lb Features of JL Billet AR 15 Lightweight Billet Upper Receiver M4 AR15 Billet upper receiver. Package Contents: JL Billet AR 15 Lightweight Billet Upper Receiver What firearm models does the manufacturer say JL Billet AR 15 Lightweight Billet Upper Receiver is compatible with? The manufacturer suggests that JL Billet AR 15 Lightweight Billet Upper Receiver is compatible with AR-15JL Billet JLB-SKLTR-UPR-A: Lightweight Billet Upper Receiver AR 15 Black