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GM-M27 16" 300 BLACKOUT

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Product Description

300 BLACKOUT, 1:7 Twist, 16" long, 4150 steel, weighs 1.75 lbs., carbine length, button rifled, air gauged, stress relieved, chrome line bore and chamber, phosphate finish, 7 flute, 5/8x24 muzzle threads.

Barrel not pinned for front sight base.

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Product Reviews

Showing reviews 1-5 of 41 | Next

  1. high quality missile 5 Star Review

    Posted by on 2nd Sep 2020

    This is my 3rd G/Mntn barrel, what's that tell you?
    I am impressed with the staff when I need guidance and their quality is spot on. I wish they put all the specs on the barrel and their name, otherwise perfection is what you get at a fair price.

  2. Truly Amazing! 5 Star Review

    Posted by on 28th Aug 2020

    Just got three more barrels to add to my other five, and they are just as amazing as the others!

  3. Best brand ive ever bought 5 Star Review

    Posted by on 16th Jan 2020

    I’ve spent hundreds on high end barrels and decided to try the 6.8 for a budge and was blow away. I’ve only bought green mountain since. This 300blk out shot 3/4 moa at 100 yards with factory 120 grain rem.

  4. great barrel, great company, fast shipping 5 Star Review

    Posted by on 9th May 2019

    Sub moa on 16" 300 all out. Had issue with adj. Gas block but swapped it out got a straight port and runs like a sewing machine. Well done guys, love your barrels.

  5. great barrel great price not great price for shipping 5 Star Review

    Posted by on 22nd Apr 2019

    I love GM barrels. There excellent quality and a great value. I just wish they wouldn't charge so much for shipping.

Showing reviews 1-5 of 41 | Next