HOLY RUNNING BOAR BATMAN! I'd like to see more if that one!
Some if your pics are not showing up.... The Gen1 and Gen2 Urals were made in tandem with the Gen 1, 2, and 3 CM2s.... The Urals are a bit bigger and have the heavy 3 lug bolts.... Same bolt as the Taiga, Strela and others as a matter of fact. The MTs-12 however is a dif animal having a 4 lug bolt.
I have... Gen1 and Gen2 CM2s, Gen2 Ural, Taiga-2, Strela-3, Mts-12, and MTs-70-1. The 70-1 is (from what I'm told) an experimental running bore gun from the design/development shop at Tula.