Daewoo Precision Industries K4

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Daewoo Precision Industries K4
K-4 Auto 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.

See also[edit]


  1. ^ a b c d e "Daewoo K4 40 mm machine gun (Korea, South), Weapons of 20 mm and upward". Jane's Armour and Artillery Upgrades. May 17, 2010. Retrieved 2010-06-24. 
  2. ^ "S&T Daewoo Succeeded in First Exporting K4 Automatic Grenade Machine Gun to Libya". S&T Holdings. December 21, 2009. Retrieved 2010-06-24. [permanent dead link]
  3. ^ "S&T모티브, 멕시코, 파푸아뉴기니 軍․警에 총기 수출". S&T Motiv. April 10, 2013. Archived from the original on April 13, 2015. 

External links[edit]