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GM-M57 .223 Wylde 1:8 Twist


Product Description

  • Caliber- .223 Wylde
  • Twist Rate- 1:8
  • Length- 16"
  • Profile- M4 Under "See 1 more picture" there is a detailed drawing of this barrel.
  • Finish-  Nitride
  • Gas System Length- Carbine
  • Gas Block OD- .750+-(.001)
  • Steel Type- 41V50
  • Thread Pitch- 1/2x28
  • Weight- 1.85lbs

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Product Reviews

  1. first 3 shots 1/2" outside to outside !! with cheep 55gr 223's 5 Star Review

    Posted by on 17th Apr 2021

    needed no break, in sub MOA all day long !!! GREAT job GM You make it easy to Keep my customers happy.

  2. Impeccable craftsmanship! 5 Star Review

    Posted by on 12th Nov 2018

    What a beautiful barrel! I purchased the .223 Wylde 16” barrel for my build, and it’s amazing. It has not been fired as of this posting. But, I have no doubt it will live up to what I’ve seen and heard so far. If I ever build another rifle, you can bet I’ll be back for another barrel from Green Mountain!

  3. GM-M57 barrel 5 Star Review

    Posted by on 23rd Mar 2018

    Nice finish; fit properly, easy install with proper headspace; I have not yet fired for break-in or accuracy.