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557BLANK-17 5.56mm/.223 17"x1.062" Round Barrel Blank 1:7 Twist


Product Description

  • Caliber- .223/5.56
  • Twist Rate- 1:7
  • Length- 17"
  • Profile- Raw Barrel Blank
  • Steel Type- 41V50

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Product Reviews

  1. great barrels 5 Star Review

    Posted by on 10th Jan 2019

    I have purchased several barrels from Green Mountain all have been great

  2. Outstanding value and performance 5 Star Review

    Posted by on 7th Oct 2016

    I just finished two of these in a heavy (.935") bull barrel configuration for a friend and for one of my own AR-15 carbine length rifles.

    I turned the barrels between centers on my lathe for profiling, but they are already turned concentric with the bore by the factory, so there was literally NO runout when turning these from the get go. Some other brands I have used wobble like crazy when turned between centers before the outside profile is cleaned up.

    Bulk wolf .223 ammunition was punching holes in paper like a carnival game star shoot. I haven't even tried using the expensive stuff like black hills gold with it yet, but I'm waiting until I have a magnified scope to try it out for accuracy.

    You can't go wrong with this barrel. It's great value and the finish is great.

  3. looks great 4 Star Review

    Posted by on 9th Dec 2015

    I almost hate to even turn it down its well machined . If I had a gas block that would fit it I would not id crown it drill a port an run it .
    I cant wait to get I on a upper an shoot it .

    If I could shoot it an verify accuracy Id give it 5 stars

  4. excellent 5 Star Review

    Posted by on 17th Mar 2015

    exactly as listed and a great price