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- MILITARY BARRELS
- AR15 Chambered Barrel Blanks
- GM-B6 21.5" Gunsmith Edition 300 Blackout 1:8 twist Unfinished Barrel
GM-B6 21.5" Gunsmith Edition 300 Blackout 1:8 twist Unfinished Barrel
Product Description
300 black out, 1:8 twist, 21.5" long, 41V50 steel, weighs 3.5 lbs, gunsmith edition blank, chambered in 300 blackout, chrome line bore and chamber with a phosphate extension.
Product Reviews
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excellent barrel
Posted by Art Deuel on 2nd Sep 2020
I wanted this to be single shot so I didn't drill a gas port and left it full profile.
Very tight chamber and minimal neck expansion....the press handle just drops thru when full length sizing.
Excellent accuracy!! Can't say enough good about this barrel!
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Excellent product!
Posted by James Farmer on 30th Aug 2020
This was my first 300 Blackout build So I wasn't sure what to expect. The barrel produced 2 inch groups with commercial ammo and 1 inch groups with my handloads. I'm very happy with the quality of the barrel and will definitely be buying more.
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Great buy!
Posted by William Barger on 30th Aug 2016
I am very pleased with this barrel, did some minor finish work, didn't even bother to cut it, installed it on my M&P15, it worked flawlessly. I'm very pleased with the accuracy I've been able to achieve so far, and I expect it to get better as the barrel gets broke in.
