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GM-B2 21" 5.56mm Gunsmith Edition blank with a phosphate extension

Price:
$95.95
SKU:
GM-B2
Shipping:
Calculated at checkout
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Product Description

21" Gunsmith Edition, 5.56mm, 1:7 twist, 41V50 steel, chrome lined bore and chamber, phosphate extension (with M4 feed ramps), weighs 3.65 lbs.


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Product Reviews

Showing reviews 1-5 of 7 | Next

  1. Tack driver 5 Star Review

    Posted by on 20th Jul 2016

    This was the first GM barrel that I have used in a rifle build, it won't be the last. I plan to use a GM barrel for a scratch built 1885 Winchester project that I'm in the process of milling now. Accuracy is impressive, to say the least.


  2. ar15 varmint barrel 5 Star Review

    Posted by on 27th Apr 2016

    As always another submoa barrel from GMB co. This is 11 guns ive built with thease barrels and always have been more than satisfied. Thanks nyle barnett


  3. High Quality 5 Star Review

    Posted by on 29th Mar 2016

    Bought it to build a light weight AR. Metal is very hard, had to take small cuts on the slowest speed & finest feed. Turned out perfect. Sand blasted it when it was all done & cold blued it. Very happy with finish.


  4. great 5 Star Review

    Posted by on 21st Sep 2015

    Great barrel at a great price ,This is my second
    barrel


  5. perfect barrel for straight pull bolt build 5 Star Review

    Posted by on 29th Mar 2015

    I ordered two barrels for a pair of straight pull, side charging, bolt action AR type rifles. The lack of a drilled gas port was exactly what I was looking for my new project. In the people's republic of New York, the safe act has all but ruined the modern sporting rifle. When they arrived I noticed one was Stainless steel and the other was not. This was a pleasant surprise because I had planned on having to blue both barrels. I had 11 degree crowns cut into both barrels and left them full length. The barrels have a heavy profile and measure .900 diameter from the step down behind the barrel extension to the muzzle. I fired 82 rounds from the stainless steel barrel build today, at 100 yards my 10 shot groups could be covered by a dime. I am looking forward to finishing the blued barrel build. These barrels are perfect for building a tack driving rifle.


Showing reviews 1-5 of 7 | Next