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GM-M20 20" 223 Wylde Chamber


Product Description

223 Wylde Chamber, 1:8 twist, 20" long, 416 stainless steel, weighs 2.20 lbs.,  Fluted, honed, button rifled, air gauged, stress relieved, passivated, bead blasted matte finish,  Nickel Boron extension with M4 feed ramps, and has a rifle length gas block. 

Barrel is not pinned for a front sight base.

Under "See 1 more picture" there is a detailed drawing of this barrel.

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Product Reviews

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  1. What a deal! 5 Star Review

    Posted by on 24th Feb 2020

    I had a client that wanted a different barrel on his AR 15.I recommended Green Mountain as a source and he agreed, it looked good to him. When the barrel arrived he was impressed with the finish and really liked the way it shoots and the balance of the rifle now.

  2. Great barrel 5 Star Review

    Posted by on 29th Nov 2019

    I have had this barrel for a couple of years now and the rifle I have it on is my go to rifle for shooting prairie dogs on the family farm. I am shooting 55 gr. Hornady bulk soft point bullets with Varget powder, at ranges from 50 to 400 yards. Works great at reducing the population of prairie dogs in our fields.

  3. great barrel for the price 5 Star Review

    Posted by on 6th Sep 2019

    Lightweight good accuracy at a hundred yards very pleased with this Barrel

  4. Nice barrel 4 Star Review

    Posted by on 20th May 2019

    Installed this barrel on a VLTOR upper. Out of the box it shoots .75-1" groups at 100yds with 77gr SMK or 75gr Hornady Match ammo without trying too hard. To me that's pretty decent performance for what it costs.

  5. Very happy with this barrel 5 Star Review

    Posted by on 12th May 2019

    This barrel is perfect for a ar you intend to pack. The best blend of weight, balance and accuracy that I have Handled. Highly recommend this barrel.

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