5.56mm, 1:9 twist, 16" long, 41V50 steel, weighs 1.8 lbs., button rifled, stress relieved, chrome line bore and chamber, phosphate finish, .750" gas block with drilled gas port. Assembled with M4 feed ramp extension, designed for carbine length gas system, 1/2 x 28 muzzle thread...
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Showing reviews 1-5 of 33 | Next
Posted by michael clifford on 2nd Aug 2020
Fantastic barrel, No reason to buy the more expensive “big name” barrels!
I went to my gun range this morning and shot multiple 3/8” 3 shot groups at 100 yards with Hornady black 62 grain. Hornady frontier 68 grain bullets had about 3/4” groups. Tried 55, 62, 68, 75 & 77 grain bullets today.
This is my 3’rd Green Mountain barrel, keep up the good work.
Posted by Unknown on 9th Jun 2020
I ordered this barrel because it was the same as what I have on my Bushmaster Texas Edition. I wanted something that wasn’t too heavy or too light for my current build. Something that could occaisionally handle a mag dump if needed but not weigh a ton. Overall very happy with it and will consider more in the future. GM customer service is outstanding as well.
Posted by Bob N on 2nd Nov 2017
Barrel looks great, can't wait to finish up and get to the range. Very quick delivery and great people to deal with. Thanks again GM
Posted by Terry on 27th Jan 2017
I am using it to replace an existing barrel and it went together very well. I have only put fifty rounds through it but it appears to be dead on. The chrome lining made it so much easier to clean.
Posted by Wesley on 12th Dec 2016
Absolutely awessome, best bang for the buck grouping is nice great choice you will be very happy , I know I am !!! Thank you Green Mountain!!!
Showing reviews 1-5 of 33 | Next