General Dynamics European Land Systems
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K11 S&T Dynamics Daewoo Advanced Individual Weapon System


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The K11 dual-calibre air-burst weapon was first shown to public in 2009, during DSEI military expo, although information on its development was available since about 2006. The K11 (XK11 during early development) weapon is being developed under direction of the Agency for Defense Development of the Republic of Korea, with the Company S&T Daewoo. K11 advanced individual weapon system has the lethality of 5.56 mm kinetic energy and 20 mm high explosive air bursting with full solution fire control system. The above-target air bursting extends lethal area of high explosive ammunitions. K11 can suppress defiladed targets in a fox hole or behind the obstacle. K11 provides significantly increased probability of incapacitation and survivability in field and urban terrain.
Variants :
No variants at this time
- 5.56 x 45 NATO caliber
- 20 x 30 mm for the Air Bursting Ammo
Technical Data
Lenght : 860 mm
Weight : 6.1 kg include battery
Rate of fire : ?
Magazine : 30 rounds
Designer Company
S&T Dynamics Daewoo
S&T Daewoo write to the left side of the weapon, with the identification number
Security selector to the left side of the weapons, three positions, S (Safe Mode), 5.56 mm Semi-Auto Mode, 5.56 mm 3 rounds burst mode.
Lenght: 405 mm
Technical Data
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K11 dual-caliber air-burst weapon consists of three major units, linked into one weapon. Those are 20mm multi-shot grenade launcher (which serves as a bone to the system), the 5.56mm automatic rifle with firing controls, and an electronic fire control unit. The grenade launcher is a manually operated, bolt action weapon that is fed from detachable box magazines. It is built in bullpup layout, with aluminum alloy receiver and titanium alloy barrel. The trigger system of the grenade launcher is mechanically linked to the trigger / selector / safety unit of the integral rifle component. The rifle component is more or less conventional, gas operated, rotary bolt selective-fire weapon which uses M16-type magazines. Its layout is more or less similar to US-made M16 or Korean-made K2 rifles. The trigger unit is a common part between grenade launcher and rifle components, with single safety / fire selector lever providing fire from grenade launcher (single shots) or rifle (single shots or 3-round bursts).
At the present time, two types of 20mm ammunition are specified for K11 grenade launcher - the K167 HE air-burst grenade and K168 TP target practice grenade. Rifle component can use any NATO-standard 5.56mm ammunition. Aside from being able to fire 20 to 30 rounds of standard 5.56 mm NATO munitions depending on the size of the magazine provided, there is a 20 mm air-burst grenade launcher that can hold six grenade rounds to be used to take out multiple targets.
Production and usage
The K11 shows more than passing similarity to the ill-fated American XM-29 OICW weapon, but it appears that K11 has better chances to see the service - it is believed that first unit of South Korean army could receive the K11 weapons in 2010. The weapon is to be given to two in each squad, but it will not replace grenadiers who are currently issued with K2 rifles with underslung K201 grenade launcher. On the other hand, every Special Warfare Command who are deployed to overseas will equip the weapon. This is not surprising, considering the fact that Republic of Korea is among world's leading countries in the field of design and production of advanced micro-electronics, and also has an established defense industry and strong motivation for constant upgrade of military equipment.
As of now, the K11 dual-caliber air-burst weapon is proposed for infantry squad support role, multiplying soldiers capabilities to engage enemy personnel in defilade and soft-skinned vehicles and equipment, using 20mm air-burst grenades with pre-programmed fuse and 5.56mm ammunition for short- to medium range direct fire.
The K11 Advanced Individual Weapon System is equipped with an electronic fire control unit, which includes laser rangefinder, environmental sensors, ballistic computer, and day (optical) and night (IR) sighting channels. The ballistic computer output is fed to the electronic aiming reticle (providing visible point of aim pre-set for proper range) and to the fuse-programming unit in the grenade launcher, which sets the 20mm grenade to explode at specified range, above or to the side of the target, to provide maximum kill effect from explosive fragmenting warhead.
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