Bartlein 3B Threaded 5/8-24?

[BAKPAKR]

I have a Bartlein 2B in .280AI that's threaded 5/8"x 24.

At what length?

 

[john k]

At what length?

24"

 

[BAKPAKR]

24"

Are you just using a brake or are you using a suppressor? I have a 24" Bartlein 3 with a little cut off the shank threaded to 9/16-24 as I didn't think I would have much of a shoulder with 5/8".