Caliber 5.56mm NATO
Barrel Length 16"
Manuf. Process Cold Hammer Forged
Twist Rate 1:7
Muzzle Thread 1/2x28 TPI (Threads Per Inch)
Material Chrome Moly Vanadium
Outside Finish Mil-Spec Heavy Phosphate
Inside Finish Chrome
Gas System Mid-length
Diameter At Gas Port .750"
Barrel Extension A4
Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide steel hammers. During the hammering process, a mandrel is inserted into the bore while the carbide steel hammers shape the barrel around the mandrel creating the chamber, the lands, and the grooves. In addition to the aforementioned benefits, the Cold Hammer Forging process creates a defect free bore and the most consistent chamber possible.