How short can you go on a 223/5.56 with a suppressor before you give up major velocity? Does anyone make a suppressor that uses some area towards the breech for expansion so it doesn’t stick out so far? What I’d like is a gun that with a suppressor that is similar length to a 16”AR with the flash hider. If I can do that without loosing too much velocity. Maybe a pencil barrel too to keep the weight down. Compact, light weight, and still enough oomph to work on coyotes and pigs and targets of course. I know the blackout lends itself more to this, but I already have one of those.