Since I don't have a sound suppressor, I'll settle for a flash suppressor or a compensator. But never a muzzle brake, and thus, no need to cover it up to protect others from the excessive muzzle blast. I've often wondered if linear comps actually work as compensators or not. I don't see how they could really do much if all the gas is going forward. A bare muzzle does that too and doesn't have a compensating effect. Other than adding weight and length to the barrel, I don't see how the ones I've seen can have an effect.