Have a CZ scorpion, SB folding brace, lots of HB Industries parts. Runs great. Fits in a messenger bag on trips.
Lately thinking of going up from 9mm to the Springfield Saint edge pistol in 556.
Makes more sense in a rural area.
How much is the 556 giving up in a 10 inch tube?

You can google several sites where they chronographed 5.56 from various barrel lengths. The 10" will still be far superior to a 9mm.