16″ 5.56mm 1:7 Twist 4150 Barrel Rainbow PVD Coated

• 4150 Chromoly Steel

Rainbow PVD (Physical Vapor Deposition)

• Markings Spiral Engraved Near Break

• 5.56/.223 Chambered in 5.56×45

• M4 Contour Profile

• 1/2″ x 28 Thread

• Carbine Length Gas System

• 1:7 Twist

• M4 Feed Ramps

Aesthetic Coating Which Improves Durability & Lubricity

• .750 Gas Platform System

• Black Nitride Coating