I contacted Zac. They have a suppressor for a 7 inch full auto 5.56 but haven't done any research on the 7.62 x 39. He didn't seem interested in coming up with something for my short rifle. It seems to me that with the cost of ammo climbing, shooters would be turning to the cheap Russian ammo as a way to shoot longer and more often. I got to try my PWS Diablo Saturday using Silver Bear ammo and never had a single problem. I did wish my Lula loader would work on the C-mags. Can't find anyone willing to help there either.