M57 mortar

The Yugoslavian 60mm M57 Mortar^[2] was generally based on the design of the US 60mm M2 Mortar. Currently, the M57 Mortar is produced by the Serbian company PPT Namenska,^[3] and is still used by the 72nd Brigade for Special Operations of the Serbian Armed Forces.^[4][5]

M57 60mm Mortar
Type	Mortar
Place of origin	Yugoslavia
Service history
In service	1957-present
Wars	South African Border War Yugoslav Wars Second Liberian Civil War Mali War[1]
Production history
Designer	Military Technical Institute
Manufacturer	PPT Namenska
Specifications
Mass	19.7 kg
Crew	3
Caliber	60 millimetres (2.4 in)
Rate of fire	25-30 rpm
Maximum firing range	2537m with mortar shell M73
Feed system	manual
Sights	NSB-1

Purpose

The M57 60mm mortar is intended to provide fire support on short ranges. It is capable of eliminating live forces, firing posts and machine gun nests.

Ammunition

HE Mortar Shell^[6]

• 60 mm HE Mortar Shell M73 P4
• 60 mm HE Mortar Shell M73 P3

Smoke Mortar Shell^[7]

• 60 mm Smoke Mortar Shell M73P2
• 60 mm High-Smoke Mortar Shell M93

Illuminating Mortar Shell^[8]

• 60 mm Illuminating Mortar Shell M67P2

Operators

• Armenia^[9]
•  Bosnia and Herzegovina^{[citation needed]}
• Liberia^[10]
•  Mali^[1]
•  North Macedonia^{[citation needed]}
•  Namibia^{[citation needed]}
•  Serbia
• Ukraine:^[11] one shown in a video in use by Ukrainian fighters.