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S&T Motiv (Daewoo) XK9 / XK10 (DS9A)

Submachine Gun (SMG) [ 2003 ]

The XK9 and XK10 submachine guns were a South Korean attempt to provide general forces and specialist troops with a homegrown SMG solution.

Authored By: Staff Writer | Last Edited: 09/22/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The S&T Daewoo XK9 marked a new developmental submachine gun design intended for use by South Korean special forces and general military personnel. The type was chambered for the ubiquitous 9x19mm Parabellum pistol cartridge feeding from a 30-round straight detachable box magazine. In function it was to mimic the capabilities of the storied German Heckler & Koch MP5 series which remains in widespread circulation worldwide but it appears that only developmental forms of the South Korean product were realized in or around 2003.

The XK10 became an offshoot of the XK9 and offered with folding skeletal stock and more compact dimensions for ease-of-use in confined quarters. As of this writing, the XK9/XK10 project appears to be cancelled. It is also mentioned under the designation of "DS9A" in some sources.

At its core, the weapon fired from a blowback system of operation at a rate of 980 rounds-per-minute. The submachine gun weighed nearly 3 kilograms when empty and sported an overall length of 680mm. The barrel of the XK9 measured 220mm long with effective engagement ranges out to 150 meters

Externally the weapon featured a traditional arrangement with angled pistol grip aft of the action, a forward-set magazine well and a largely rectangular receiver. The stock was either solid or skeletal depending on model and a section of rail was fitted over the receiver for the mounting of optics or tactical gear. As in the MP5, the barrel of the XK9 was mounted low within the forend section.©MilitaryFactory.com
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S&T Motiv (Daewoo) - South Korea
South Korea (cancelled)
Operators National flag of South Korea
Service Year
South Korea
National Origin

680 mm
(26.77 inches)
Overall Length
220 mm
(8.66 inches)
Barrel Length
6.39 lb
(2.90 kg)
Empty Weight
Blowback; Selective Fire
Gas pressure from the rearward movement of the ignited cartridge case provides the needed bolt movement, ejecting the spent case and stripping a fresh case from the magazine.
9x19mm Parabellum
May not represent an exhuastive list; Calibers may be model-specific dependent; Always consult official manufacturer sources.
30-round detachable box magazine
Iron; Optional Optics

Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information.

500 feet
(152 meters | 167 yards)
Max Effective Range
1,250 ft/sec
(381 m/sec)
Muzzle Velocity

XK9 - Base Series Designation; 2.9kg weight; 680mm extended length, 438mm folded; 220mm barrel length.
XK10 - Shortened, lighter weight form; 2.8kg weight; 590mm extended length, 348mm folded length; 134mm barrel length.
DS9A - Alternative designation

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