The 3 lug adaptor for the can is very pricey, and I haven't ordered it. The MP5 will probably be converted to a SD.I put a 3 lug mount on my 9mm rifle and have 9mm and .45 Pistons that will cover three pistols.
i put a silencerco muzzle brake that serves as a mount on my ar. Just need to order the silencer to go with it.