Rainier Arms Mountain Series CHF Barrel 5.56mm Nato



Rainier Arms Mountain Series CHF Barrels are built to be of the highest quality, extremely durable and long service life. Cold Hammer Forging of barrels has been known to produce accurate and longest lasting rifle barrels obtainable. The process also creates a defect free bore and the most consistent chamber possible. Many have trusted CHF barrels to be part of their foundation when building their duty rifle.

Specs:

Barrel Material: Chrome Moly Vanadium Steel

Made of Mil Spec M249 Machine Gun barrel steel, with heavy M249 Chrome Lining, (appx. 2 times as thick as an M4 or M16)

Barrel Type: Cold Hammer Forged

Barrel Caliber: 5.56mm NATO Barrel

Barrel Length: 14.5 Mid Gas, 16 Mid Gas, or 18 Rifle Gas

Barrel Profile: Modified Mid Weight Government Profile or Government Profile (STD)

Twist Rate: 1:7

Muzzle Thread: 1/2x28 TPI (Threads Per Inch)

Diameter At Gas Block: .750

Bore: Chrome Lined

Chamber: 5.56mm NATO

Made in the USA

Weight: