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Click the button below to add the GM-B2 21" 5.56x45mm Chambered Blank 1:7 Twist to your wish list.

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GM-B2 21" 5.56x45mm Chambered Blank 1:7 Twist

Price:
$148.95
SKU:
GM-B2
Availability:
OUT OF STOCK


Product Description

  • Caliber- 5.56x45mm
  • Twist Rate- 1:7
  • Length- 21"
  • Profile- Chambered Blank
  • Finish- Chrome Lined 
  • Steel Type- 41V50
  • Weight- 4.00lbs

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Product Reviews

Showing reviews 1-5 of 9 | Next

  1. Great value 5 Star Review

    Posted by on 23rd Jun 2021

    The blank looked good and it turned and threaded on the lathe like a champ!


  2. awsome barrel 5 Star Review

    Posted by on 17th Feb 2018

    Great barrel likes everything I feed it. Heavier the better.


  3. 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.


  4. 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


  5. 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.


Showing reviews 1-5 of 9 | Next