21.5" Gunsmith edition blank, Chrome lined bore and chamber with a phoshate extension. Made with 41V50 steel, 300 Blackout cal, 1:8" twist. 3.5 lbs.
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.