M252 mortar
| M252 | |
|---|---|
| M252 mortar | |
| Type | Mortar | 
| Place of origin | United Kingdom (designed) United States (manufactured) | 
| Service history | |
| In service | 1987–present (United States) | 
| Used by | See Operators | 
| Wars | Vietnam War (prototype model) Soviet–Afghan War Gulf War War in Afghanistan Iraq War Syrian Civil War | 
| Specifications | |
| Mass | 41.3 kilograms (91 lb) | 
| Barrel length | 1.27 metres (4 ft 2 in) | 
| Crew | 5 | 
| Caliber | 81 millimetres (3.2 in) | 
| Elevation | 45°–85.2° | 
| Traverse | 5.6° | 
| Rate of fire | 8–16 rpm sustained 20–30 rpm in exceptional circumstances and for short periods | 
| Effective firing range | HE: 91–5,935 m (99–6,490.6 yd) | 
| Feed system | muzzle-loaded | 
The M252 81 mm medium weight mortar is a British-designed smooth bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to light infantry, air assault, and airborne units across the entire front of a battalion zone of influence. In the U.S. Army and U.S. Marine Corps, it is normally deployed in the mortar platoon of an infantry battalion.