+1
The other thing I suspect you’ll find is that 556 really doesn’t impress suppressed. It looks really cool, but you can’t shoot subsonic in 556 that I’m aware of, so you’ll always have a sonic crack when you fire.
There are a bunch of manufacturers that make 5.56 subsonic ammunition and even 308 too. I bought some to run in bolt guns suppressed. No nasty ballistic crack!