Does anyone happen to have measurements on the current production Sionics barrels? I’m looking at the 12.5 and 11.5 lengths.

I did email them a few months ago asking this question, but they said to call them. I called and spoke to one of the guys, but he wouldn’t give a size. While I’ve bought from them in the past, and I’m sure they know what they’re doing, I’d like to have an actual size rather than “trust us, we don’t over gas our barrels like the other guys”.

I looked at older threads with posted GP sizes, but it looks like they’ve been changing throughout the years. I also see that under complete uppers they have options for “ERGP” and “Dedicated Suppressed Use” on top of whatever their standard GP size is.