All the 594s are McCartys . McCarty is kind of a name for "Gibson inspired" guitars in the PRS line.
Mine has vintage tuners because it is a 2020 model SC594. In 2020 they went for the vintage tuners instead of the Phase 3 locking tuners. It's one of the changes to make it more authentic to a vintage Burst Les Paul. It's also nitro finish and newly tuned pickups.
I didn't realize they changed the tuners on the 2020 models. I have a double cut 595 one off. I changed the pickups in mine to 57/08s. I love those pickups. The LTs that were in it were just a little too weak for me. There was a drastic difference in volume between those and my pickups in my other guitars so it wasn't working out well at gigs.
One reason I asked about the guitar is that I have an SC-59 that is that same color, which is a one off color for the SC-58. Yours looks really close to mine.