Hmm, thanks for the info Dani. I kinda thought that, since it's even smaller in diameter than the Huma M30 on my #1 AP16, and that's just...ok in sound..
I guess I'll get another Huma M40. A little shorter (two segment) and smaller in diameter than the Tatsu.
BUT...I gotta say, your AP16 got me thinking.
LONG story short, I dug out an old Burris 2-7 x 28, "Scout" scope that I had for a M1, Garand, SoCom 16. Come to find out, the "Scout" and the "handgun" are basically the same scope ! I dug through a bunch of stuff and found enough parts to attach it to my #2, AP16.
It's almost as long as the gun (minus the suppressor), so I set it back as far as practical. The scope center to bore is VERY low. Had to do a little clearancing of the rail adapter so it would fit .
Photo to follow tomorrow.
Mike