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Rainier Arms Mountain Series CHF Barrel 5.56mm NATO - 16" Mid Weight

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Product Description

Rainier Arms Mountain Series™ CHF Barrel 5.56mm Nato 16" Mid Weight Profile

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.


  • 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: 16"
  • Barrel Profile: Modified Mid Weight Government Profile
  • Barrel Gas System: Mid Length
  • Twist Rate: 1:7
  • Muzzle Thread: 1/2×28 TPI (Threads Per Inch)
  • Diameter At Gas Block: .750
  • Bore: Chrome Lined
  • Chamber: 5.56mm NATO
  • Weight: 1 lbs 9.8 oz
  • Made in the USA

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Product Reviews

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  1. It shoots well for what it is. 5 Star Review

    Posted by on 6th Apr 2014

    There is often a trade off between durability and accuracy. This barrel breaks this convention. Even with the double thick chrome lining, I am able to consistently hit an 8" steel plate at 225 yards. This is not the result I was expecting when I bought this barrel.

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