My hunting partner got his AR set up for a suppressor to use for calling coyotes. So far, with all the problems he's encountered with it, we've never taken it out yet calling. It's built by a nationally known company, and it's a good quality suppressor. It's a twist on locking lug type which gave problems first with the suppressor drooping just slightly enough to cause the bullet to hit the top of the suppressor bore. Got that fixed. But the biggest issue is with the gas system. It takes a lot of finesse to get the load just right to cycle the rifle, yet be quiet enough to do the job. If you don't have enough gas, it won't cycle. So you do it by hand, which won't work calling. Enough gas to cycle, its still like (maybe) a .22 rifle. But the sound is supposedly redirected, making the sound seem to come from the opposite direction. Also, it seems to foul easily. Anyway, HE'S had a bad time with his. After experiencing all the problems he's had, I made up my mind that if I ever did one, I'd go with a bolt gun. I'm sure theres people out there that could make this work, but it seems like a waste of time and money from what I've seen. Greg