Looks like the bottom photo has wrapped barrels???
The McShort has been shelved due to cash flow and the inability of PTG to send what i ordered.
I have the reamer, which took month and months... no GO gauge with it.... email... phone call... yeah yeah, oh, we'll send it ASAP... 1 year later..... nothin'!
I'll get back on their butts to send it as i paid for it 18months ago!!!
Had similar issue with getting custom dies made... wont say who but they were VERY unreliable as to how and when they would get to making them.
There are other priorities right now, so it might be a year or more before i get the custom forming and sizing dies made, get a DBM functionally sorted to reliably feed the short round and get the go gauge so the barrel can be rechambered.
PS: ended up spending my project funds on knife making gear too!