This is my Predom Lucznik WZ 1976 air pistol. It was manufactured by Zaklady Metalowe Predom-Lucznik in Radom, Poland from at least 1972 to about 1980 it is a copy of the Walther LP53. The parts are interchangeable but the LP53 is a much more refined gun.
I have resealed it and shot it for the first time today. Crony at 422fps average. Now it time to shoot some paper and see what it will do. I expect it to level off at around 400fps. My first six shots free hand at 25 feet.
James Bond 007 with a LP53