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GM-M61 14.7" 5.56x45mm 1:7 Twist


Product Description

  • Caliber- 5.56x45mm
  • Twist Rate- 1:7
  • Length- 14.7"
  • Profile- M4 extension 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- 1.50lbs

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Product Reviews

  1. Excellent lightweight barrel 4 Star Review

    Posted by on 28th Dec 2020

    I initially got this barrel on a whim because Faxon was out of their pencil barrel. I'm happy with the switch. The green mountain barrel is accurate, 1.3lbs and gassed really well for steel 223-55gr 556 with a standard buffer and buffer spring. I do have a couple suggestions. Put a crown on the barrel (11degree) and dimple the barrel for a low pro gas block.

  2. Great barrel, great price, great company! 5 Star Review

    Posted by on 14th Oct 2019

    This is my second Green Mountain barrel. I am so happy this size and profile is offered. The barrels are high quality and shoot as well as I am capable of. The service from this company is exceptional, I received a shipping email within the first 24 hours and even received a thank you letter in the mail a couple weeks after I bought this barrel. I highly recommend this company to anyone looking for barrels. Thanks!

  3. Great Product And Great Service 5 Star Review

    Posted by on 26th Mar 2019

    I promptly received my 2 barrels that i ordered and also received a follow up letter thanking me for my purchase and offering any further assistance!! These barrels looked great, Green Mountain is a great company to order from!