Yesterday I picked up my new P01. When I got home and was cleaning it I found out it was the Omega. It wasn't on the tag that was on the gun. It didn't look like it had been fired. Sold as a used gun. I got it cleaned up and took it to the range and put a little over 100 rounds through it. I used three different loads I made up. It didn't seem to like the 147 grain loads. They shot too high. I had some 135 gr loaded with Unique and 231. It liked the 231 the best which my other 9's like too. It cycled great. It shot the group about 1" to the right at 7 and 25 yards. When I got home and cleaned it up I noticed the rear sight was not centered. So I moved it slightly and will shoot it again today off of a rest. I got a little trigger slap off of it. I noticed the roll pin for the firing pin looked like it has been hammered on and thought maybe someone had been messing with it unless that was the assembly from the factory. After cleaning it up I tested the trigger pull and is 4 lb 5 oz consistent pull and no gritty feeling. Really nice. I use CCI primers and the ones I used are small rifle. The firing pin only left a little indent in the primer but fired every one just fine. I ordered a new extended firing pin and retaining pin and some punches. When that all comes in I will pull the pin and see what is in the gun. When I got the gun the grease in it was thick and sticky like it was pretty old. I had to use a punch to get the lever lock out of it to pull the slide. I cleaned it up and put fresh oil on it. So far I like it a lot. A few years ago I bought a 75B off of a guy at the range. Super trigger but after a mag or two the trigger would not reset. It had had a trigger job. I could clean it and it did the same thing. He bought it back off of me. That was the only CZ I have owned before. On this one the serial number is on the frame, barrel, and slide. It starts with G and on the slide there is a little triangle and 22. I think I saw that was when it was made.