8.5″ M4 Stainless Steel

• Chamber – 5.56, M4
• Barrel Twist – 1×7
• Barrel Thread – 1/2 x 28
• Barrel Steel – 416R Stainless Steel
• Flash Hider – A2 Flash Hider
• Handguard -7” US Made M-LOK Free Float Forearm
• Gas Block – .750 Micro
• Gas System– Pistol Length
• Upper Receiver – M4 Flat Top Upper
• Bolt Carrier Group – Included
• Charging Handle – Included

All NFA Rules Apply!

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.