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- GM-M4-9 10.5" 9mm AR15 Barrel
GM-M4-9 10.5" 9mm AR15 Barrel
Product Description
9mm, 1:10 twist, 10.5", 1.2 lbs, Barrel for AR15 M4 Rifle with integral extension and installed alignment pin. Made from high grade 41V50 milspec steel, 1/2 x 36 UNS muzzle thread. Black nitride coated inside and out for enhanced wear resistance and extended performance, with a Full Auto chamber. Barrel has been button rifled, air gauged, and stress relieved Check with your installer for proper fit before purchasing.
Product Reviews
Showing reviews 1-5 of 15 | Next
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9mm barrel
Posted by Unknown on 10th Aug 2020
Perfect as always
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10.5 inch 9mm review
Posted by Cactus Jack Hollis. on 1st Feb 2016
As usual, Green Mountain has hit another home run. This 9mm AR pistol barrel is all one could ask for and more. Great is not nearly a good enough pronoun.
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Great quality and customer service
Posted by Layke Tactical on 5th Jan 2016
Have been buying from GM for a few years from now and have never had any problem at all. Listing GM barrels as one of our suppliers for our firearms is a selling point.
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Good price, Excellent Performance
Posted by Rachel on 17th Aug 2015
Installed this barrel in a Rock River Arms LAR-9, replacing it's 16" barrel. Installation was perfect, no adjustments necessary, and performance was perfect. The finish is beautiful, and matches the standard AR black finish perfectly. Priced very well, and I am certainly not disappointed!
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Great Barrel
Posted by Alan on 26th Jul 2015
I used this for a build using a QC10 small frame Glock Lower, on. VLTOR upper, it fit perfectly. Cycles and functions perfect, customer service was outstanding. Would recommend them to anyone needing a quality barrel.
Showing reviews 1-5 of 15 | Next
