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GM-M11 16" Finned Barrel in 5.56mm with ext.

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Product Description

5.56 mm, 1:7 twist, 16" long, 4150 steel, weighs 1.7 lbs., Black nitride finish, finned barrel, extension with M4 feed ramps, drilled gas port hole, 1/2 x 28" muzzle threading, .750 gas block, carbine length, button rifled, air gauged, stress relieved.   

Barrel is not pinned for front site.

Under "See 3 more pictures" the last one is a detailed drawing of the barrel. 

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Product Reviews

Previous | Showing reviews 6-10 of 20 | Next

  1. Two Kinds of Cool Barrel 5 Star Review

    Posted by on 24th Aug 2016

    Fins keep the barrel cool and looks cool, so double cool points! Seriously, very accurate barrel, my second barrel from Green Mountain.

  2. I like the finned barrel 5 Star Review

    Posted by on 15th Jun 2016

    Just finished putting the AR together with the finned 16" barrel and it looks and shoots amazing. I will likely get the short one also.

  3. I like it. 5 Star Review

    Posted by on 21st Apr 2016

    Good looking, great heat dissipation, accurate, and a nice finish, good value, fast delivery. Fit The bill all the way around. Thanks Green Mountian.

  4. great quality and fast shipping 5 Star Review

    Posted by on 11th Apr 2016

    I am very pleased with the product I recieved. The barrel I ordered came fast and is exactly as described. You can expect my business on future projects and I would recommend you to anybody looking for good quality barrels.

  5. Sweet purchase! 5 Star Review

    Posted by on 28th Mar 2016

    Using this on my first AR build. Came across it when researching what Barrels were out there & I had to have it. It looks great in person. I posted a review on YouTube with crappy sound. I've heard nothing but great things about Green Mountain Barrels so it was a no brainier. I'm about done with my build, just need my gas system & I'll be shooting. I'll continue with my results on here! Just buy it!

Previous | Showing reviews 6-10 of 20 | Next