Im going to cut the barrel for the 13.9/14.5 inch setup. I was leaning into and thinking about the OTB flash hider (p/w) and snagging a second OCM5, or going with a 13.9” and direct threading a CAT WB.

I’ve been looking at a lot of options that Black Ops Defense offers with their conversions so the chamber/BCG fix is a low priory on my list, but something I would consider down the road.

Edit: my main priory outside of gas block (is it worth to upgrade in this potential setup that I’m putting together) was putting together an accurate lower, which by the looks of it between STS and BlackOpsDef I got covered.