Guntech 7.5″ 5.56mm 1:7 Twist 4150 Barrel (Tin Coated)

Description

• 4150 Chromoly Steel

• 5.56/.223 Chambered in 5.56×45

• 1:7 Twist

• Tin COATING (Gold Titanium Nitride Finish)

• Aesthetic Coating Which Improves Durability & Lubricity

• Contour Profile

• Markings Spiral Engraved Near Break

• .750 Gas Platform System

• M4 Feed Ramps

• Pistol Length Gas System

• Black Nitride Coating

• 1/2 by 28 Thread