Features:

• 12.5″ Cold Hammer Forged 5.56mm Barrel
• Made of Mil Spec M249 Machine Gun barrel steel, with heavy M249 Chrome Lining, (appx. 2 times as thick as an M4 or M16)
• Extended Feed Ramps
• MP HP tested with certification
• 1 in 7″ twist
• Mil Spec Phosphate finish
• Carbine Length Gas System
• 1⁄2×28 threads
• Pinned Lo-Profile Gas Block
• Forged Vltor MUR upper receiver featuring an anti-rotation interface with the handguard
• 7″ free floated handguard w/ 1913 rails –Shot peened and MP tested bolt
• Auto carrier with properly staked carrier key
• Gun Fighter Charging Handle
• KX3 Flash Suppressor,(US pat #7,836,809)