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GM-M18 18" 223 WYLDE chamber

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Product Description

18", 223 WYLDE, 1:8 twist, honed, 416R stainless steel, Fluted, passivated, bead blasted matte finish, Nickel Boron extension, M4 feed ramps, and has a rifle length gas block. Weighs 2.1 lbs. Barrel is not pinned for front site. 

Under "See 2 more pictures" there is a detailed drawing of this barrel. 

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Product Reviews

Showing reviews 1-5 of 76 | Next

  1. Nice Looking Barrel! 5 Star Review

    Posted by on 9th Jul 2017

    I love the look of this barrel. It's mated to a tungsten Cerakote finish on the rifle. The bead blasted finish is perfect. I bought this barrel for accuracy, and with the right ammo it doesn't disappoint. With handloads between 55 and 68 grains, I can easily get 1 moa groups and sometimes half-inch groups at 100 yards. So yeah, this barrel will shoot well.

  2. .6" out of the box 5 Star Review

    Posted by on 7th Jun 2017

    Barrels came packaged in a matter above and beyond. Finish inside and out was flawless. Installation was a breeze. After a 10 round test fire to test gas system, sat down on sand bags following a quick cleaning. Rifle shot a .6" group with production federal match ammo. With another 85 rounds before the barrel is broken in, this thing will be a shooter.

  3. Great for 3 gun 5 Star Review

    Posted by on 30th May 2017

    I own two of these barrels. Both SUB MOA with Harnady 55 gr VMAX and Varget.. ..400 yd steel is no problem for me in 3 gun matches. Note like my other outstanding Greem Mountan 300 blackout 16" barrels clean the barrel well before shooting it the first time. A lot of production poop in the bore.

  4. top shelf 5 Star Review

    Posted by on 29th May 2017

    Craftsmanship fit and finish of product was quality. Service of company top notch, installed barrel. Went to range with my handloads and achieved sub 1"@ 100 yards, very pleased .... thanks GMBC

  5. Can't believe it 5 Star Review

    Posted by on 25th Apr 2017

    Can't believe they are selling these for this price. This is my first experience with GReen Mountain and I am impressed. Shipping was fast, packaging was excellent and product quality is impressive at this price. Good idea to follow the barrel break-in procedure on these barrels as they are not your chrome-lined mil-spec barrels. These are built for precision and precision they are...

Showing reviews 1-5 of 76 | Next

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