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GM-M17 20" 5.56mm M16 A2 A/R Barrel, 1:7 twist

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Product Description

M16 A2 5.56mm 20" Barrel, 1:7 twist, 41V50 mil spec vanadium alloy steel, fully machined and assembled with extension (with M4 feed ramps), chrome lined bore and chamber for optimum performance and durability, drilled gas port, phosphated finish, rifle length gas block, 1/2x28" muzzle threading, weighs 2.05 lbs.   Barrel is not pinned for front site.

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

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Product Reviews

Showing reviews 1-5 of 36 | Next

  1. I feel very comfortable with this barrel. Would and have recommended it to others 5 Star Review

    Posted by on 19th Sep 2016

    Very pleased with this product and the Green Mountain company. Thank you for a great barrel.

  2. Great choice for Nearly Mil-Spec barrel 5 Star Review

    Posted by on 11th Jul 2016

    Excellent quality, outstanding price, fast service and shipping. What more could you ask for? Maybe the option to drill the barrel for FSB pins, that's about it. Highly recommended!

  3. I'm very satisfied 5 Star Review

    Posted by on 2nd May 2016

    The barrel arrived in a timely manner. The price was excellent. The barrel came coated with oxidation protection. It fit with my upper receiver perfectly. If I need to get another barrel (and I plan on building another rifle soon only 16" this time) I will definitely be purchasing from Green Mountain!

  4. can't miss 5 Star Review

    Posted by on 18th Apr 2016

    Once you get this thing zeroed in, theres nothing you cant reach out and touch with a nice 77 grain bullet.

  5. it shoots.. 4 Star Review

    Posted by on 11th Apr 2016

    this barrel shoots well. machine work is excellent from green moumtain...please see my other review in the 416r stainless 223 wylde gm-m18.. it contains more info of this barrel also...55 grain & 77 grain loads....lights out.. however, i would not run this barrel full auto.. just my opinion ...it tends to drift / droop a bit after a quick 5 shots.

Showing reviews 1-5 of 36 | Next