Just ran across new subject can on YouTube with its modular design.

Starts at 7+ inches, .9" O.D., and like the old Tootsie-Roll can
each baffle on stack can be removable.

Anyone here any info on it?

When HPA passes then one could get 2 and then
increase size to say 10" - removed YouTube PTK's
super quiet long can inspired.

Maybe Ruger will take notice and plan for a longer version
of their novel baffle design to satisfy those who want an longer
'Artillery Luger' size. Like the classic NIKON 55mm -300mm lens.

There was a pretty thorough article on Ammoland about the Q Erector the other day. I don't have any experience with the suppressor but I like the concept. The article might answer some questions for you: https://www.ammoland.com/2017/07/q-erector-silencer/