10.5″ 5.56 Upper with GPR-7″ Rail System w/ FSB

Description

(NFA/PISTOL Upper)

NITRIDE PREMIUM 10.5″ Upper w/ GPR-7  FSB

• 10.5″ Carbine Barrel 4150 CrMoVa  (5.56 NATO Chamber)
• Nitride Treated Barrel (inside & out)
• CARBINE Gas System
• 1:7 Twist Rate
• 1/2×28 Thread Pitch
• Nickel Boron M4 Barrel Extension with Extended Feed Ramps
• Nitride M16 Bolt Carrier Group w/Logo (properly staked w/Grade 8 hardware)
• Nitride Carbine Gas Tube (Nitride Treated)
• Nitride Micro Gas Block .750 (Nitride Treated)
• SOT GPR-7″ Free Floating Rail System (FSB)
• Cerakote: Graphite Black
• Forged Charging Handle
• A2 Flash Hider 1/2×28