About the Handgun:
The M57 effectively a Serbian model of the Soviet military Tokarev TT-33 semi-automatic pistol.
About the Manufacturer:
The Serbian state arms factory was created in the early 1900s with assistance from Fabrique Nationale. It has continued to function ever since, changing ownership with the political shifts of the area. Since 1989 it has had a stable presence in the English-language commercial market as 'Zastava Arms'. Today the company produces a complete range of hunting, sports and self-defense weapons. While mostly sold in the European markets, Zastava models have been sold in the US under the Charles Daly, and more recently, the European American Armory labels.
About the Cartridge:
This was the official Soviet pistol cartridge adopted in 1930 for the Tokarev Model TT-30 and modified Model TT-33 automatic pistols. The cartridge is very similar in dimension to the 7.63mm Mauser cartridge. Most brands of Mauser ammunition can be fired in the Tokerev pistol. The 7.62mm Tokarev is a fair cartridge with good velocity and flat trajectory but needs softpoint bullets for maximum effectiveness.