Haven't had my older bolt guns threaded but the last four built all sport cans. My AR'S are suppressor ready. The only draw back is cans on gas guns is the extra soot that gets everywhere including the magazine. IMO, don't waste the paperwork and money on .223 suppressors go with detachable .308 or .338 cans. the .308 cans work on 30 cal down to 17 cal. My .338 Norma was greatly tamed by being suppressed, didn't hurt accuracy either.
