Heckler & Koch UCP

Heckler & Koch UCP
Type	Semi-automatic pistol
Place of origin	Germany
Specifications
Weight	0.85 kg
Length	200 mm
Barrel length	130 mm
Width	30 mm
Height	135 mm
Cartridge	HK 4.6×30mm
Action	Delayed-Blowback
Muzzle velocity	695 m/s
Effective firing range	70 m
Feed system	20 Round box magazine
Sights	Iron

The Heckler & Koch Universal Combat Pistol (HK UCP), a double action, semi-automatic handgun also known as the HK P46, was developed under commission for the German Bundeswehr.

The concept for the UCP was later discontinued at the prototype stage.

The UCP was to be the companion side arm to the HK MP7 submachine gun, using the same HK 4.6×30mm bottlenecked cartridge (see internal ballistics). The 4.6×30mm round is a direct competitor to the 5.7×28mm by Fabrique Nationale de Herstal (FN). As such, the UCP would have been a direct competitor to the FN Five-seven pistol. Both have greater armor-piercing capabilities and less recoil compared to other commonly used military handgun cartridges, such as the 9×19mm Parabellum or .45 ACP.

The UCP operated on the delayed-blowback operating principle. The external design of the UCP appears to have been borrowed from the HK P2000 pistol, and includes ambidextrous controls, interchangeable backstraps, and a MIL-STD-1913 Picatinny-type rail system for the attachment of accessories. Like the USP and P2000 series of pistols, the trigger mechanism is reported to have been modular and capable of different configurations. The UCP was designed to accept an extended, threaded barrel capable of accepting the attachment of a sound suppressor made by Brügger & Thomet.

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