Daewoo XK9
S&T Motiv (formerly Daewoo Precision Industries) · Submachine Gun · Prototype · 2003
Also known as: DS9A, Daewoo DS9, S&T Daewoo XK9
Overview
The S&T Daewoo XK9 (also designated DS9A) was a South Korean 9x19mm submachine gun developed in the early 2000s as a domestic alternative to the Heckler & Koch MP5 then in service with ROK special operations forces. Built on a shortened K2 rifle action with a polymer skeletonized side-folding stock, the XK9 fires from a closed bolt at ~980 rpm with a four-position selector (safe, semi, two-round burst, full-auto). Despite trials, the XK9 was not adopted; the project was effectively cancelled.
Specifications
| Weight (empty) | 2900 g (102.3 oz) |
| Weight (loaded) | 3300 g (116.4 oz) |
| Overall Length | 680 mm (26.77") |
| Folded Length | 438 mm (17.24") |
| Barrel Length | 220 mm (8.66") |
| Action Type | Blowback |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 30 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 381 m/s (1250 fps) |
| Effective Range | 150 m (164 yd) |
| Rate of Fire | 980 rpm |
| Barrel Rifling | Right Hand |
| Number of Grooves | 6 |
| Frame Material | Polymer |
| Slide Material | Steel |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Phosphate |
Calibers
- 9x19mm Parabellum · primary · 9mm NATO — also known as 9mm Luger, 9mm NATO, 9x19mm
Features
- Firing modes: Semi Automatic, Burst 2, Full Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety, Fire Selector
- Features: Skeleton Folding Polymer Stock, Four Position Fire Selector, K2 Rifle Derived Design, Mp5 Form Factor, Ambidextrous Controls
Variants
- Daewoo XK10 — Compact Short Barrel
Production
Production years: 2003-2010
Prototype only; never adopted, project shelved in favor of continued MP5 use and later Korean PDW concepts
Origin
Country of origin: South Korea
Designer: S&T Daewoo (Daewoo Precision Industries)
Notes
Two prototypes are documented: the standard XK9 with 220 mm barrel and a shortened XK10 with a 134 mm barrel and 590 mm extended length. Both use the same 30-round magazines.
Background
The XK9 was the third Korean attempt to replace the MP5 in special-forces hands, and was specifically designed to mimic the MP5's manual of arms - yet despite competitive performance figures, ROK SOF resisted parting with their German classics, and the XK9 quietly disappeared.