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GM-M54 16" 5.56mm 1:7 twist Finished

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Product Description

5.56 mm, 1:7 twist, 16" long, 41V50 steel, weighs 2.1 lbs., button rifled, air gauged, stress relieved, bore is not coated, phosphate finish, extension with M4 feed ramps, 1/2 x 28" muzzle threading, carbine length, .750" gas block diameter.

Barrel is not pinned for a front sight base.

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Product Reviews

  1. Great value 5 Star Review

    Posted by on 27th Dec 2018

    You can't find a better quality barrel anywhere. The quality and the price is beyond the best in the industry.

  2. M4 build 5 Star Review

    Posted by on 21st Dec 2017

    After 150 round of Hornady 62gr and 75gr/H335 down range. The barrel is averaging.75 MOA in my M4. With some load development this barrel should produce very good groups. The barrel is just over 2LBS in weight. A All Guard Team member referred my to GMB last season and i couldn't be happier with the barrel.