20″ 5.56 Lightweight Chamber – 5.56 Barrel Twist– 1×9 Barrel Thread– 1/2×28 Barrel Steel –4150 Chrome Moly Phosphated Flash Hider– A1 Birdcage Slip Ring Style – A2 Delta Style Handguard – A2 2 Piece Triangle -Black Gas Block Profile – .750 Sight– NON F Marked Tower Gas System – Rifle Length Upper Receiver – A1 Slick Side w/ Door (no M4 ramps) Bolt Carrier Group – Included (M16) Charging Handle– Included Mag NOT Included Warranty: 1 year warranty against manufacturer defect. ***Ammunition Notification*** JSE Surplus test fires every custom upper to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with US made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds. Some of the non-warrantied ammo includes: Tula, Wolf and Perfecta.
