My serial number is a nice mathematical sequence: 842
I cleaned all the Soviet style packing/storage grease and I have to say, it's a nice looking pistol. Lots of hard edges, but not shaving sharp like the Chinese Tokarev. Much better build quality in most areas than the Soviet and Chinese Tokarev pistols, but other areas leave a little to be desired. One example is the forward half of the top of the slide. The ant-glare serrations there do not feel smooth.
The one thing that concerns me is that the slide is much easier to pull back when compared to the Colt Delta Elite. Considering the early model Delta Elites had frame cracking issues I will not be surprised if the P10/M93/Z10 is going to have the same problem. Colt solved the issue by adding in a plastic slide spring guide to act as a sacrificial shock absorber and cut a notch at the slide stop hole to prevent cracking.
All that said, this gun was designed a decade after the Delta Elite was released and I am just a gun nerd with no Mechanical Engineering, Machining, or Gunsmith training so it might be a fine 10mm Auto pistol. Considering the Delta Elite is based on a pistol designed in the first decade of the 1900s for a low power cartridge that hit energy levels of about 400-500 Joules and was then in the 80s capable of being used as a platform for the 10mm Auto, I am going to guess a state sponsored firm is going to design a gun that won't break after a thousand rounds of off the shelf cartridges.
A stiffer spring would have been nice though, psychologically speaking.