• Chamber – 7.62X39
• Barrel Twist – 1×10
• Barrel Thread -5/8X24
• Barrel Steel – 4150 Chrome Moly Steel,  Nitrided
• Handguard – UTG PRO Arwen 15.25″ M-LOK Free Float Handguard, Black
• Flash Hider: A2
• Gas Block – .750 Micro
• Gas System –  Carbine
• Upper Receiver – Aero Precision M4E1 Threaded Assembled Upper Receiver – Anodized Black
• Bolt Carrier Group – 7.62 Complete Bolt Carrier
• Charging Handle – 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.