Zastava Arms M57A 7.62x25mm Tokarev 4.5in Blued Steel Pistol – 9+1 Rounds – The M57A is an upgrade of the basic M57 model. Similar to the design of the Soviet TT pistol, it has been popular for decades due to its proven high quality. This classic single action weapon is known for reliability and precision. It has an external safety and ergonomic improvements in the polymer hand grip covers.