20" Long, Stainless Steel Sporter Barrel, weighing 2.1lbs. The barrel has been Button Rifled, Stress Relieved, Air Gauged, with a 22LR Bentz chamber and a 1:16 twist rate.
Not intended for Stinger or Sub-Sonic ammunition.
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Posted by Andre Cambre on 4th Dec 2018
Best barrel I've gotten from GM yet! Everything tweaked and I'm not touching anything! Wish I could post a pic of this fine rifle.
Posted by Unknown on 11th Jun 2018
Full-length bedded the entire action and barrel on a sporter stock. Got about 1-1/2 MOA 5 shot group at 100 yards. I'm happy with that. The 20" barrel also gives the rifle a little more inertia for offhand shooting. Money well spent.
Posted by sklasing on 30th Apr 2018
Rarely can you spend 180$ on a product upgrade and have it impact the accuracy of the product so much.
Added GM's 22lr stainless sporter barrel for my ruger 10/22 and upon proper sight in immediately went from 1.5MOA groupings to < 1 MOA groupings.
Posted by FORREST ADAMS on 12th Feb 2018
Without a doubt this is one of the finest Sporter barrels on the market today. Did a custom build with a Ruger wild hog stock, JWH Customs "Wild Hog" Bolt and a silver receiver .... It is way to pretty for a daily shooter ..... But of course I did take out out and sight it in ...10 rounds in a 1 MOA bulls eye at 100 yards was easy with this Green Mountain Barrel.
Posted by Bonkz on 9th Nov 2017
Replace the stock barrel with this and the warp stock with Magpul Hunter x-22 added a Nikon 3x9 target scope. WOW what a shooter :) Accurate no jamming with Aguila super extra, CCI SV and Armscor 38gr HV. Destroys the bulls eye at 100 yards. I don't shoot expensive target ammo and at 50 yards I get less than an inch 10 shot group on the bench sometimes. It likes the Aguila Super extra out of my favorite ammo
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