i have a M85NP that I’m going to mount a Ultimak M1-B on. It requires cutting it down to get 1/16” gap both sides since they don’t make a mount for the M85. I saw a video where Riflr Dynamics butt the Ultimak tube all the way against the FSB and put the gap to the rear. Their reason is to keep pressure loss at a minimum to cycle the AK bolt assy. Anybody have any experience in this regard? Thanks
