Daewoo Precision Industries K4

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Daewoo Precision Industries K4
K-4 grenade launcher.jpg
Daewoo Precision Industries K4 on display
Type Automatic grenade launcher
Place of origin Republic of Korea
Service history
In service 1993-present
Used by See Users
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[1]
Produced 1993-present
Weight 34.4 kg (75.84 lb) (no tripod)
Length 1,072 mm (42.2 in)
Barrel length 412 mm (16.22 in)

Caliber 40×53mm grenade[1]
Action API Blowback
Rate of fire 350 rounds/min
Muzzle velocity 241 m/s (790.7 ft/s)
Effective firing range 1,500 m
Maximum firing range 2,212 m

The Daewoo Precision Industries K4 is a 40x53mm high-speed Automatic Grenade Launcher in use with the Republic of Korea Armed Forces.[1] It is very similar to the American Mk 19 grenade launcher.[1] 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.


A ROK Marine stands at attention behind a Daewoo K4.

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