I'm starting to piece together what will be my first SBR. It is going to start out life as a pistol until I get the stamp. I know I want a 556. I know what I want for parts except for barrel length. It is going to be suppressed. But I am going back and forth on barrel length. 10.5, 11.5, 12.5? Part of me is saying if I'm going to go SBR and I know its going to always be suppressed, go 10.5, I already have a 16" AR. What say you guys for a HD, range toy, SHTF piece?