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GM-M62 M4 ext , 14.5" 5.56x45mm A1 Pencil Profile


Product Description

  • Caliber 5.56x45mm
  • Twist Rate- 1:7
  • Length- 14.5"
  • Profile-Pencil (Under "See 1 more picture" there is a detailed drawing of this barrel.)
  • Finish- Chrome Line Phosphate
  • Gas System Length- Carbine
  • Gas Block OD- .624 +-(.001)
  • Steel Type- 4150
  • Thread Pitch- 1/2x28
  • Weight- 1.25lbs

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Product Reviews

  1. M62 14.5 inch carbine length pencil profile 5 Star Review

    Posted by on 14th Dec 2020

    This was my first purchase with GM, and my first complete AR build. It arrived within a week, and was secured and wrapped very well. The machining and finish is very well done. It fit in my fulton armory upper (with m4 cuts) perfectly, and the gas port aligned with my gas block. I built a 652/654 style carbine. I have not shot it yet, but I expect it to perform very well.

  2. GM-GM62 14.5” pencil profile barrel. chrome lined 5 Star Review

    Posted by on 5th Mar 2020

    Received Barrel very quickly, and it was very well packed. Barrel looks and feels great like the other Green Mountain barrels I’ve bought for my AK47 and AK74 builds.
    The journal sizes were all spot on for the AK barrels and this barrel was excellent as well!
    I highly recommend this company and their awesome barrels!

    I’ll definitely be buying more, thanks again for a great product!