Heckler & Koch · Submachine-Gun · In Production · 1974
| Weight (empty) | 3393 g (119.7 oz) |
| Overall Length | 807 mm (31.77") |
| Barrel Length | 146 mm (5.75") |
| Height | 230 mm (9.06") |
| Width | 67 mm (2.64") |
| Magazine Capacity | 30 rounds |
| Action Type | Roller Delayed Blowback |
| Firing Mechanism | Hammer Fired |
| Muzzle Velocity | 285 m/s (935 fps) |
| Muzzle Energy | 320 J (236 ft·lbf) |
| Effective Range | 100 m (109 yd) |
| Frame Material | Steel |
Primary Caliber: 9x19mm Parabellum
The MP5SD is an integrally suppressed variant of the MP5 submachine gun, introduced by Heckler & Koch in 1974. It uses a 146 mm ported barrel housed inside a two-stage suppressor that bleeds propellant gas to reduce muzzle velocity below the speed of sound, allowing standard supersonic 9x19mm ammunition to be fired with subsonic ballistics. The result is one of the quietest, most reliable suppressed submachine guns ever fielded.
Country of Origin: Germany
Designer: Tilo Moller