I have had it for about a week I think. Maybe a bit longer. The slide has 6-21 stamped in the disconnector rail which became apparent after the Cerakote wore off. I believe it to be recent manufacture. Bought it on Gunbroker, a rarity for me as none were to be had locally.
In its current iteration, I am back to a round bottom Wilson FPS. Haven’t gone back to the flat bottom FPS yet. I had tried every combination of springs, FPS, extractors in trying to get the ammunition and magazine sensitivity out of it. Turned out to be the barrel. I reamed it on day 1 to get it to feed SWC profile target reloads. Worked. But only well with an Ed Brown Hybrid lip magazine. Even with that it occasionally coughed. Like every couple hundred rounds. The tooling marks were the big problem. I got down the barrel adjustment road when I tried an Ed Brown barrel from my Ruger in it. Worked better. So I adjusted the barrel throat and the chamber and hood. I just tried 10 magazines or so. Including some $5 eBay specials that really don’t work well in my other .45 pistols. So far, I can mix and match mags and bullet profiles and it works fine. I am bouncing tuna cans at 15-20 yards which is about my best these days anymore. The barrel hood itself is a terrible fit in the slide, side to side. Ok for a $399 gun.
My guess is that there is a skilled labor shortage in Turkey too. Riffling in the barrel looks ok. I am not complaining. I have had fun with this project.
Best wishes.