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.

Daewoo Precision Industries K4
K4 automatic grenade launcher
TypeAutomatic grenade launcher
Place of originRepublic of Korea
Service history
In service1993-present
Used bySee Users
WarsWar in Afghanistan
Iraq War
Libyan Civil War
Production history
DesignerAgency for Defense Development
Daewoo Precision Industries
Designed1985-1991
ManufacturerDaewoo Precision Industries (1981-1999)
Daewoo Telecom (1999-2002)
Daewoo Precision (2002-2006)
S&T Daewoo (2006-2012)
S&T Motiv (2012-2021)
SNT Motiv (2021-present)
Produced1993-present
Specifications
Mass34.4 kg (75.84 lb) (no tripod)
Length1,072 mm (42.2 in)
Barrel length412 mm (16.22 in)

Cartridge40×53mm grenade
Caliber40 mm
ActionAPI Blowback
Rate of fire350 rounds/min
Muzzle velocity241 m/s (790.7 ft/s)
Effective firing range1,500 m
Maximum firing range2,212 m
Feed systembelt-fed, 32 or 48 grenades belt
SightsKAN/TVS-5 night vision scope can be attached

The K4 was developed as a complement to the K-201 hand-held grenade launcher (attachable to the K2).

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