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GM-M10 7.62 x 39 mm 16" M4 Barrel Chromed and Phosphated 1:10

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Product Description

7.62 x 39mm 16" M4  Barrel with extension, chromed bore and chamber, phosphate finish, button rifled, thermo stress relieved, drilled gas port, .750" gas block, designed for carbine length gas system, 5/8-24 muzzle thread.  Barrel is not pinned for front site. Weighs 1.65 lbs.

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

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Product Reviews

Showing reviews 1-5 of 25 | Next

  1. Awesome performance 5 Star Review

    Posted by on 7th Aug 2017

    Re-barreled an upper that was chambered in 7.62x39 I was very impressed with the accuracy ran 500 round no problems held 1 inch groups at 100 yards. I'm impressed.

  2. Best money I've spent in a while even though I missed the sale! 5 Star Review

    Posted by on 5th Jul 2017

    Built the upper with the GM barrel and a BCG that was recommended and 10 round ASC mags. The AR shot unbelievable considering I was using Wolf, PPU and old TCW ammo. I was too much fun to describe having the AR shoot so well right at the start. I love the chrome lining so I don't have to clean as often. Really nice barrel!

  3. A solid barrel for anyone's home build 5 Star Review

    Posted by on 30th Jan 2017

    This is my third Greenmountain barrel and my second 7.62 x 39 barrel, my barrels arrived on time carefully packaged to prevent damage ,the workmanship is very good quality the barrel Feed ramps works flawlessly and it shoots very accurately . The barrel cleans up easily, what more can a man ask for in a barrel?

  4. fast shipping, great customer service 4 Star Review

    Posted by on 8th Sep 2016

    Bottom line.. Thay make a great barrel . Watch the Sale banner , I would give it 5 stars but it went on sale the day I received it in the mailbox .

  5. Best Barrel of its Kind 5 Star Review

    Posted by on 15th Jul 2016

    This is a high quality barrel, perhaps the best of its kind. Shooting Tula and Red Army Standard steel-cased ammo, I was able to consistently achieve 2 MOA groups at 50 yards with Magpul MBUS sites shooting without a rest. Groups opened up a bit a 100 yards, but the barrel is certainly more accurate than I am. I'm planning to add a Leupold VX-2 3-9x scope and I'm confident it will be a tack driver based on what I've seen so far. The feed ramps where perfectly cut with no need to modify them for the 7.62x39 rounds. Paired with a Black Rifle Arms BCG and ASC magazines, my rifle runs flawlessly. I am very happy with this product. Please note however that my barrel was not dimpled for the gas block. However, it was no big deal to fix that with a drill, guide, and vice.

Showing reviews 1-5 of 25 | Next