Need suggestions for an AR suppressor

[cvasqu03]

I'm going to be in the market for an AR suppressor soon, but I wanted to be able to try it on several rifles, so I have a few questions for the experts.

I assume most suppressors will have the ability (or option) screw onto 1/2x28 threads, but which models will attach to a standard AR flash suppressor without need to replace it with a proprietary muzzle brake or adapter?

Does anyone have experience using a .30 Cal suppressor for multi-caliber on a .223 rifle? If so, which one and how did it work?

[ericlw]

I use my aac sdn6 on my 223. It seems to work but still loud But not as loud without. i assume a dedicated 5.56 can would work better.

[AlabamaPaul]

Most .30 cal cans will run on a .223/5.56. Griffin Armament has several suppressor models that attach to mil-spec flash hiders...