CFARS Caliber Update

[ar15barrels]

why don't you just put it down as a 40 and run it that way and not make a big deal out of it?

I dont have the .40 slide and barrel anymore as I sold it.

I already suggested the easiest thing, just put your 40 parts back in and use it as a 40. Done.
Doesn't mean you can't practice with it later with your 9 parts on it.

Reading comprehension much?