Other than suppressor use, any performance difference between 1.0/2.0 Battle Comp?

I’m curious to know if there is any observable performance difference betweem the 1.0 and 2.0 Battle Comp muzzle brakes. I have read on another forum that there seems to be less muzzle blast on the 2.0. Any truth to this?

Nope.

I have a BC 1.5 on my Noveske AR and it works beautifully! My brother shoot it this past weekend and he was shocked at how little recoil it had. He has a BM with only a target crown on his barrel and it kicks for him.

Both versions have the same internal architecture and identical performance. The difference between the two is external dimensions only.