JL Billet Upper Reciever .308 Billet Black. These billet uppers are design 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 DPMS Low Profile Rail Height Type III Hard Black Anodize Precision 5 Axis CNC Machined Specifications for JL Billet .308 Billet Upper Reciever: Manufacturer: JL Billet Color: Black Finish: Type III Hardcoat Anodized Fabric/Material: 7075-T6 Aluminum Caliber: .308 Winchester Gun Make: DPMS Gun Model: DPMS LR-308 Additional Features: Low Profile Projectile Caliber: .308 Caliber Country of Origin: USA Features of JL Billet .308 Billet Upper Reciever JL Billet 308 Billet Upper Receiver Matched Set Package Contents: JL Billet .308 Billet Upper Reciever What firearm models does the manufacturer say JL Billet .308 Billet Upper Reciever is compatible with? The manufacturer suggests that JL Billet .308 Billet Upper Reciever is compatible with DPMS LR-308JL Billet JLB-308-UPR-A: Upper Reciever .308 Billet Black