The Daewoo Precision Industries K4 (Korean: K4 고속유탄기관총; Hanja: K4 高速榴彈機關槍) is a 40×53mm high-speed automatic grenade launcher in use with the Republic of Korea Armed Forces. The K4 was developed as a complement to the K-201 hand-held grenade launcher (attachable to the K2).
== History == The K4 was first developed in 1994.
Design
It has a weight of 34.4 kg (empty, without accessories) and can fire up to 325 rounds per minute with a firing range of 1.5 km. When needed to be used during night operations, a KAN/TVS-5 night vision scope can be attached onto the receiver. The K4 is said to visually resemble the Mk 19 AGL.
Users
Iraq: Small numbers used by Iraqi special forces on Humvees. Libya: First export customer, purchased the K4 in 2009. Mexico: Purchased since 2011. Poland: Several hundred K4s ordered in 2022. South Korea Singapore: 17 K4s transferred according to a 2019 SIPRI small arms report.
== See also == AGS-17 – (Soviet Union) AGS-30 – (Russia) AGS-40 – (Russia) GMW – (Germany) Mk 19 – (United States) Mk 47 – (United States) List of API blowback firearms List of grenade launchers
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