Heckler & Koch MP5

Heckler & Koch MP5
Heckler & Koch MP5A3
TypeSubmachine gun
Semi-automatic Carbine (MP5SF, HK94, SP5, MP5 .22 LR)
Pistol (SP89, SP5K)
Place of originWest Germany
Service history
In service1966–present
Used bySee Users
Wars
Production history
DesignerTilo Möller, Manfred Guhring, Georg Seidl, Helmut Baureuter
Designed1964–1966
ManufacturerHeckler & Koch
Produced1966–present
VariantsSee Variants
Specifications
Mass2.54 kg (5.6 lb)
Length680 mm (27 in)
Barrel length225 mm (8.9 in)
Width50 mm (2.0 in)
Height260 mm (10.2 in)

Cartridge9×19mm Parabellum
10mm Auto (MP5/10)
.40 S&W (MP5/40)
.22 LR (MP5 .22 LR)
ActionRoller-delayed blowback, closed bolt
Rate of fire800 rounds/min
900 rounds/min (MP5K)
700 rounds/min (MP5SD)
Muzzle velocity400 m/s (1,312 ft/s)
Effective firing range200 m (656 ft)
Feed system15-, 30-, 40-, or 50-round detachable box magazine, 50-round drum magazine and 100-round Beta C-Mag drum magazine
SightsIron sights. Rear: rotary drum; front: hooded post

The Heckler & Koch MP5 (German: Maschinenpistole 5, lit.'Submachine gun 5') is a submachine gun developed in the 1960s by German firearms manufacturer Heckler & Koch. It uses a similar modular design to the Heckler & Koch G3, and has over 100 variants and clones, including selective fire, semi-automatic, suppressed, compact, and even marksman variants. The MP5 is one of the most widely used submachine guns in the world, having been adopted by over forty nations and numerous militaries, police forces, intelligence agencies, security organizations, paramilitaries, and non-state actors.

Attempts at replacing the MP5 by Heckler & Koch began in the 1980s, but despite functional prototype weapons having promising performance, a formal successor did not enter commercial production until 1999, when Heckler & Koch developed the UMP. However, despite being more expensive the MP5 remained the more successful of the two designs, because of its preexisting widespread use, design familiarity, and lower recoil due to its roller-delayed action as opposed to the UMP's straight blowback action.