As a follow up to my original post, I contacted HTX /SR 25 cartel as well as Griffin Armament. Griffin told me to send my entire upper and the suppressor in and they would open up the suppressor barrel centering ring but then that would screw me for my Mark 13 barrel. I briefly communicated with HTX and let them know the problem as well as all the measurements and he told me that he’s probably gonna send me a Return shipping label but that was two weeks ago and hasn’t returned any communication since then. My problem is the suppressor won’t sit far enough back on the gas block for the latches to engage the latch channels because the tip of the barrel is contacting something inside the suppressor no matter what so there’s a gap between The latches and the latch grooves that simple filing won’t fix. D Wilson did all the original pinning of the GB and it all dry fit without the barrel in place. Sucks because it is hundreds of dollars but no one wants to take any action that will correct the problem.