Yes, like that but 16"
I could even send a barrel to use as a template, I missed the boat for the ones Weaponeer had.
I got a semi PPSH41 but it has an extension welded on it and it looks like a 70 caliber.
I didn't get to dig out the spare barrel yet but I will over the weekend to take some measurements.
This isn't something I'd be in a rush for, if it's something you could do just to play with or when your bored would be fine with me.
We can work out all the details after you get your stuff taken care of, I'm not in a rush as I got to many other projects taking up most of my time right now.