Mk 19 grenade launcher

Mk 19
Mk 19
	A Mk 19 40 mm grenade launcher mounted on an M3 tripod
Type	Automatic grenade launcher
Place of origin	United States
Service history
In service	1968–present
Used by	See Users
Wars	Cold War Vietnam War; Sino-Vietnamese War; Cambodian–Vietnamese War; Sino-Vietnamese conflicts (1979-1991); Third Indochina War; Soviet–Afghan War; Persian Gulf War; ; Global War on Terrorism War in Afghanistan; Iraq War; ; 2006 Lebanon War; Kurdish–Turkish conflict (1978–present); Mexican Drug War; 2013 Lahad Datu standoff; Syrian Civil War; Yemeni Civil War Saudi Arabian-led intervention in Yemen; ; Russo-Ukrainian War; Gaza war;
Production history
Designer	Naval Ordnance Station Louisville, George M. Chinn
Designed	1966
Manufacturer	Saco Defense Industries (now a division of General Dynamics Ordnance and Tactical Systems), Combined Service Forces, MKEK
Unit cost	$20,000
Produced	1968–present
Variants	Mk 19 Mod 0, Mk 19 Mod 1, Mk 19 Mod 2, Mk 19 Mod 3, Mk 19 Mod 4
Specifications
Mass	77.6 pounds (35.2 kg) (empty, without accessories)
Length	43.1 inches (1,090 mm)
Barrel length	16.25 inches (413 mm)
Width	9.46 inches (240.4 mm)
Height	7.8 inches (199 mm)
Cartridge	40×53 mm
Action	API blowback
Rate of fire	325-375rpm (cyclic); 40 rpm (sustained); 60 rpm (rapid);
Muzzle velocity	750–790 feet per second (230–240 m/s) (average)
Effective firing range	1,500 m (1,600 yd)
Maximum firing range	2,212 m (2,419 yd)
Feed system	32- or 48-grenade belt
Sights	Iron

The Mk 19 grenade launcher (pronounced Mark 19) is an American 40 mm belt-fed automatic grenade launcher that was first developed during the Vietnam War.