Just thought I'd ask for some insight on sticking a suppressor on a SA Victor 7.5" barrel AR pistol. The muzzle threads are under the forearm, as the forearm is longer than the barrel. With that, I presume the forearm will have to come off to put on any kind of muzzle device. I thought that most AR cans are for BBLs with at least 10" or longer. Thanks in advance.