10.5″ Carbine Upper with FIRESTORM-10″ M-LOK Rail System

Description

Forged (Nitride Premium) Upper

• Barrel 10.5″ 4150 CrMoVa (NATO Chamber)(HP/MP)
• Barrel Nitride Treated (inside & out)
• Chambered in 5.56 NATO
• Premium Nitride Treatment inside and out (Barrel)
• {Nickel Boron} M4 Extended Feed Ramps
• Nickel Boron M4 Barrel Extension
• 6 Groove Rifling
• 1:7 Twist Rate
• Carbine Gas System
• Nitride Gas Tube
• 1/2×28 Thread Pitch
• Tuned Gas Port
• Nitride Treated Micro Gas Block with .750 seat
• Forged Upper Receiver
• Hand Guard Type: SOT FIRESTORM-10-M-LOK Ultra Light Free Floating Rail System
• Shot Peened and MPI tested bolt
• NITRIDE M16 carrier with properly staked carrier key (HP/MP)
• Forged Charging Handle
• A2 (Nitride Treated)
• Government Barrel Profile