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GM-M41 12.5" 300 Blackout AR15 barrel 1:7 5R twist

Price:
$173.95
SKU:
GM-M41
Availability:
OUT OF STOCK


Product Description

  • Caliber- 300 Blackout
  • Twist Rate- 1:7
  • Length- 12.5"
  • Profile- "See 1 more picture" there is a detailed drawing of this barrel"
  • Finish- Chrome Lined Phosphate
  • Gas Length- Pistol
  • Gas Block OD- .750+-.001
  • Steel Type- 41V50
  • Thread Pitch- 5/8x24

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Product Reviews

Showing reviews 1-5 of 9 | Next

  1. excellent quality 5 Star Review

    Posted by on 18th Oct 2021

    good price, fast shipping, highly recommended.


  2. Very nice 5 Star Review

    Posted by on 2nd Oct 2021

    Much better than expected, great price, fast shipping , no hassle.will definitely buy again


  3. Great Barrel—Great Price!! 5 Star Review

    Posted by on 8th Aug 2021

    Took a chance on this barrel after hearing so many great things about Green Mountain…. Received barrel very quickly and it was packaged very well. I bore scoped the barrel and everything looked great so then proceeded on and built my 12.5 upper for a AR pistol lower I have. Went to range and shot amazing groups with a Sig reddot and scoped! Both setups netted me sub moa groups at 100 yards with ease! Im very impressed and will be posting videos on youtube with a full review of this product if anyone is interested. Ill post a link as soon as I upload it here next week…. My conclusion is BUY THIS OR ANY BARREL FROM GM WITH CONFIDENCE! They will not dissapoint!!


  4. Great barrel but 4 Star Review

    Posted by on 4th May 2021

    I wish the location for the gas block was dimpled or some indication of where the gas block should be installed. This is a feature I would pay extra for, barrel is very accurate and the weight feels great


  5. Great performance for the price 4 Star Review

    Posted by on 16th Apr 2021

    Pleased with the barrel so far. My example was not notched or dimpled for set screws. Would have preferred one under the gas port but I have a jig and drilled my own no problem. Finish is very nice although there was some very minor dimples or pits in the chrome when looked at through a borescope. Accuracy is good even though I only have 60rds through it so far so I expect it to tighten up even more once fully broken in. Really like the taper and fluting. The barrel is extremely light and balanced. Would be interesting to see a 10 or 11in version of this barrel.


Showing reviews 1-5 of 9 | Next