Reviews & Ratings for Rainier Arms AR Match 300BLK Barrel — 2 reviews — Page 1

I got this barrel to go from carbine length to pistol length gas to soley run subsonic suppressed. I installed the barrel the gas block and shroud and went to put the suppressor on and it was a no go. My old $80 Bear Creek Arsenal barrel was 5/8×24 the same as this one was supposed to be. I got the micrometer out and found that the threads were .017 too big. They were the correct pitch but the od was off. I know that I could have returned it and got a new one but I'd already waited almost a month and a half for it to come in. I ended up taking it to my local gun smith. He couldn't believe that QC let this get by them. He recommended sending it back. I decided to have them fix it instead because I didn't want to wait who knows how long for another barrel. Bottom line is I ended up paying more money than I should have out of my impatience yes, but also because Rainiers poor QC. I in no way blame Optics Planet for Rainiers lack of QC as I know Optics Planet would have taken it back and made it right.

I used this barrel (14.5 inch version) in a new 300 Blackout Build, and have found it to be an Excellent Barrel so far. Have only put about 100 rounds thru the barrel on my local 100 yard range and the barrel has tested both reliable and accurate so far. I had a muzzle device pinned & welded which reached the 16" requirement on barrel length and also enabled the use a suppressor. So far, very happy with the Rainier Arms AR Match Barrel and will have to see how the barrel settles in over the next few hundred rounds, but expect it will do just fine.