III. Firearm Information by Type

I. Other Kinds of Firearms

3. 4.5mm Underwater Pistol

The 4.5 mm Underwater pistol is a four-barrelled pistol firing a drag stabilized dart. It is reported to be lethal at 50 m in air, and up to 17 m underwater. The lethal range underwater depends on the depth at which the pistol is fired; 17 m is the max, near the surface. This is a true firearm, with the dart loaded in a cartridge case. Four of the darts are placed in a clip which is loaded from the rear and secured in place by the firing chamber and breech unit. The firing mechanism is self-cocking, firing one cartridge with each pull of the trigger. Accuracy is reported as capable of hitting within a 150 mm circle at a range of 100 m in air, with similar accuracy in the water at short range. The dart is 115 mm long, the cartridge with dart 145 mm long. Each round weighs 21 g.

Cartridge: 4.5 mm Operation: breech-loading four-shot repeater, tip-down barrels. Feed: 4-round clip Weight: 950 g empty Length: 244 mm Height: 136 mm Width: 37 mm Effective Range: 50 m (in air); 6 m at 40 m depth underwater; 17 m at 5 m depth underwater Agency: Tznitochmash, Zavodskaya Street 2, 142080 Klimovsh-1, Moscow Region Status: In production