Daewoo Precision Industries K4

The Daewoo Precision Industries K4 is a 40x53mm high-speed Automatic Grenade Launcher in use with the Republic of Korea Armed Forces. It is very similar to the American Mk 19 grenade launcher. It was developed as a complement to the K-201 hand-held grenade launcher (attachable to the K2). It has a weight of 65.9 kg and can fire up to 325 rounds per minute with a firing range of 1.5 km.

Daewoo Precision Industries K4
Class Manportable
Type Rocket Launcher
Manufacturer S&T Motiv
Origin Korea
Country Name Origin Year
Korea 1993
Country Name Operational Year Retirement Year
Korea 1993 View
ManufacturerName Production From Production To Quantity
S&T Motiv 1993 View

Type Automatic grenade launcher
Place of origin  Republic of Korea
Service history
In service 1993-present
Used by Libya
Republic of Korea
Wars War in Afghanistan
Iraq War
Libyan Civil War
Production history
Designer Agency for Defense Development
Daewoo Precision Industries
Designed 1985-1991
Manufacturer Daewoo Precision Industries
S&T Daewoo
S&T Motiv 
Produced 1993-present
Weight 34.4 kg (75.84 lb) (no tripod)
Length 1094 mm (43.1 in)
Barrel length 412 mm (16.22 in)
Caliber 40×53mm grenade
Action API Blowback
Rate of fire 350 rounds/min
Muzzle velocity 875 m/s (2870 ft/s)
Effective firing range 1,500 m
Maximum firing range 2,212 m

End notes