Up for sale is a Rainier Arms 300BLK 5R-416RSS 16” match barrel. I has a 1x8 twist and easily held 1/2 MOA at 100 yards out of the box. I had this mounted on one of my uppers for a little while and has about 60 rounds through it at most. I am selling it because I went down to a 10.5” barrel. It’s been sitting for about 6 months so it needs to go. $200 shipped
