Daewoo Precision Industries K2
|Daewoo Precision Industries K2|
Daewoo Precision Industries K2 assault rifle
|Place of origin||Republic of Korea|
|Used by||See Users|
War in Afghanistan
Conflict in the Niger Delta
2006 Fijian coup d'état
|Designer||Agency for Defense Development
Daewoo Precision Industries
|Manufacturer||Daewoo Precision Industries
|Unit cost||US $727.00|
|Weight||3.26 kg (7.2 lb)|
|Length||980 mm (39 in) (extended)
730 mm (29 in) (folded)
|Barrel length||465 mm (18.3 in)|
|Action||Gas operated, Rotating bolt (long-stroke piston)|
|Rate of fire||750 RPM|
|Muzzle velocity||920 m/s (3,000 ft/s) (K100)
960 m/s (3,100 ft/s) (KM193)
|Effective firing range||600 m (K100)
460 m (KM193)
|Maximum firing range||2,400 m (K100)|
|Feed system||Various STANAG Magazines.|
Daewoo Precision Industries K2 assault rifle was developed by the, South Korean, Agency for Defense Development and manufactured by S&T Motiv (formerly Daewoo Precision Industries). It is currently the standard service rifle of the Republic of Korea Armed Forces. Shoulder-fired and gas-operated, the K2 is capable of firing both 5.56x45mm NATO and .223 Remington ammunition. The K2 supplanted the M16A1 assault rifle for the Republic of Korea Armed Forces since its adoption in 1984.
Although K1 submachine gun entered service 3 years before the K2, the development of the K2 assault rifle started many years earlier. Facing the eventual expiration of the Republic of Korea's license to produce the M16A1 (Colt Model 603K), president Park Chung-hee, who strongly believed in self-reliance in national defense, ordered the development of an indigenous standard military firearm. Engineers with the Agency for Defense Development began the project named XB rifle in 1972, resulting in the K2 assault rifle in 1983. Colt alleged the design was copied from its M16 and sued unsuccessfully. S&T Motiv does not pay license fees for manufacturing the K2.
The South Korean Army is developing a next-generation rifle to replace the K2, which is expected to be combat-ready by around 2020.
Six different prototypes were made during the XB development. Of the 6 designs, the XB6 was selected. Some parts of the XB6 resembled FN FNC such as the suppressor and sights. Further development of the XB6 evolved into the XB7 and finally the XB7C, also known as the XK2. Externally similar in appearance to the AR18, the K2 uses polymer for the forearm, pistol-grip and side-foldable buttstock. The fire control system and bolt carrier group are derived from the American M16 rifle, but few of the parts, including the bolt and carrier, are interchangeable with the M16. The gas operating system is derived from the AK-47. The K2 uses the same magazine as the M16. The barrel rifling has 6 grooves, 1-in-7.3 right hand twist. The K2 has 3 selective firing modes: semi-auto, 3-round burst, and full automatic.
The K2 can be equipped with the DPI K201, an undercarried 40x46mm single shot grenade launcher patterned after the American M203. The Republic of Korea Armed Forces originally planned to replace the entire K2 with new S&T Daewoo K11 dual-barrel air-burst weapon. However, high cost and skepticism over the effective firepower of the 20mm grenade led to the decision to provide 2 K11s to each squad, keeping 2 grenadiers as well. Consequently, the standard 9-person infantry squad of the Republic of Korea Armed Forces is currently equipped with 2 K2 rifles, 2 K2 rifles with K201 grenade launcher, 2 K11 DAWs, 1 K3 light machine gun, and the rest with either K1 or K2.
K1 submachine gun and K2 rifle
- The K1 was developed earlier than the K2.
- The K1 uses direct impingement gas system, while the K2 uses a long stroke gas piston system.
- The K1 has a 1-in-12 rifling twist for KM193 (5.56 mm) rounds, while the K2 has a 1-in-7.3 rifling twist for both the KM193 (5.56 mm, .223 Remington) rounds and the K100 (5.56 mm NATO) green tip, full metal jacket rounds.
- The K1 was originally developed as a sub-machine gun, not as an assault carbine.
- XB: At least 6 versions (XB1 to XB6) of prototype were made.
- XB6: Selected design among the prototype.
- XB7: Further development of the XB6.
- XB7C: Final experimental prototype. Also known as XK2.
- K2: Mass-produced variant.
- K2A: Enhanced K2. Adjustable stock and picatinny rail are added.
- K2C: Carbine version of K2 rifle with RAS and major modification (Rail-type: Picatinny rail). M4-type buttstock was added, the barrel has been reduced to 310 mm (12 in), and uses K11 suppressor.
- Bangladesh: Used by Special Warfare Diving And Salvage operators.
- Fiji: Used by Republic of Fiji Military Forces, exact numbers unknown.
- Indonesia: 210 K2 rifles purchased in 2008.
- Republic of Korea: Standard-issue rifle of the ROK Armed Forces since 1984. Used extensively in the Operation Enduring Freedom and Iraq War. Small amount of K2A and K2C are being tested by the army and the special forces. If test results meet the requirement, the mass production will start in 2015. Additional production of K2A will remove M16A1 from one of the standard service rifle of active troops and pass to reserve forces by 2017 while K2C will replace K1A.
- Malawi: Received 1,100 K2 and 1,000 K2C in 2012.
- Nigeria: First customer of K2. Purchased 3,000 in 1983, and another batch in 1996. Additional 30,000 rifles were sold in 2006.
- Peru: Used by the Infantería de Marina del Perú (Peruvian Naval Infantry).
- Senegal: Purchased 100 K2 rifles in 2003.
Years later when S&T Daewoo K11 dual-barrel air-burst weapon, which uses 5.56x45mm NATO and 20x30mm air-burst grenade, was developed, the Republic of Korea Armed Forces planned to replace entire K2 with K11, making K11 the standard service rifle for the armed forces. However, due to its extremely high cost and weight for a standard rifle, the armed forces removed its original plan and decided to provide 2 K11 per squad in order to increase firepower.
In 2014, an upgraded K2 rifle, the K2A was introduced, and the Republic of Korea Army is performing field test. After the test is complete, K2A will be mass-produced and will join the armed forces in 2015. Additional production of K2 rifle will remove M16A1 from active troops completely by 2017.
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