The HK P9 is a semi-automatic pistol from Heckler & Koch in 9×19mm Parabellum, .45 ACP, and 7.65×21mm Parabellum and the first to use a variation of H&K's roller delayed blowback system in a pistol format and polygonal rifling[1] now common in H&K designs. [according to whom?]
| Heckler & Koch P9 | |
|---|---|
 HK P9S with magazine | |
| Type | Semi-automatic pistol |
| Place of origin | West Germany |
| Service history | |
| In service | 1969-present |
| Used by | See Users |
| Production history | |
| Designer | Heckler & Koch Gmbh |
| Designed | 1965-1969 |
| Manufacturer | Heckler & Koch |
| Produced | c.1969-1978(P9) 1970-1995(P9S) |
| No. built | SAO: 485; P9S: unknown |
| Variants | P9S, P9 SAO |
| Specifications | |
| Mass | 880 g (31 oz), empty (.45 ACP) |
| Length | 19.2 cm (7.5 in) |
| Barrel length | 10.2 cm (4 in) |
| Height | 13.7 cm (5.4 in) |
| Cartridge | 9×19mm Parabellum .45 ACP 7.65×21mm Parabellum |
| Action | Roller delayed, Traditional Double Action |
| Rate of fire | Semi-automatic |
| Feed system | 9-round (9×19mm) or 7-round (.45 ACP) single column, detachable box magazine |
Design
editThe P9 is a roller-delayed pistol manufactured from a stamped steel main frame and a polymer trigger guard. The stamped steel slide contains machined internal parts including a polygonally rifled barrel.[2] High-profile fixed sights are fitted with two red rectangles on the rear sight and a white stripe on the drift adjustable front blade sight. Vertical zeroing is accomplished by fitting front sights of a different height.[1]
The P9S trigger operates as a traditional double action. There is a lever on the left side of the pistol grip to both decock a cocked hammer or to manually re-cock it for a single action first shot, a feature first observed on the Sauer 38H. A further function of the decocking lever is to release the slide stop. The hammer is concealed within the slide (also similar to the Sauer) with a protruding pin at the rear of the slide as a cocking indicator. The operating spring surrounds the barrel, allowing for a lower bore axis than pistols such as John Browning's M1911 that have the operating spring below the barrel. A manual firing-pin safety is located at the left rear of the slide; putting it in the down position locks the firing pin and flipping it up to level position unlocks it.
Typical to European pistols, the magazine release is heel-mounted. The magazine is single column.[1]
Production and variants
editThe design-work began around 1965, with the first series (known as "pre-73" or just P9 without S) being produced between 1969 and 1973. 485 single-action P9s were produced before being discontinued.
A traditional double action version, the P9S (the S standing for Spannabzug, or "double-action trigger") was manufactured in greater numbers, from 1973 all the way up to 1978, until being discontinued again. .45 ACP variant was introduced in 1977.[3]
The P9S was adopted by the US Navy for use with a sound suppressor.[4] The sound suppressors of the period were comparatively large and the model frequently shown with the P9S make the pistol's sights unusable so the suppressor was equipped with sights. The fixed barrel of the P9S allows the pistol to operate reliably with the suppressor attached without requiring the recoil booster most long and short recoil designs need to compensate for the added muzzle mass and mechanical movement of a mounted suppressor.
A shortened version, the P9K (the K standing for Kurz, or "short") was made in prototype form. Until Theodor Koch's death in October 1976, four prototypes of a shortened version of the P9K were also produced, but was never put into production.
In addition to the standard P9S, a P9S Target model was also offered. This model included a taller front sight, a windage and elevation adjustable rear sight, an adjustable trigger over-travel stop, and an adjustable trigger that could be adjusted down to as low as approximately a 2.5# pull. The P9S Target model was offered in both 9mm as well as .45 ACP.[5]
Users
edit
Algeria: Algerian police[6]
West Germany: GSG9[7]
Greece: EP9S variant.[8]
Japan: Used formerly by the Special Armed Police[9]
Malaysia:Malaysian Armed Forces and Royal Malaysia Police.[8]
Netherlands: Brigade Speciale Beveiligingsopdrachten.[10]
Paraguay[8]
Saudi Arabia[8]
Sudan[8]
United States: U.S. Navy.[4]
See also
editReferences
editSources
edit- Kinard, Jeff (2003). Pistols: An Illustrated History of Their Impact. Bloomsbury Publishing. p. 267. ISBN 9781851094752.
Citations
edit- ^ a b c Johnson, Harold E. (1977). Small Arms Identification and Operation Guide-free World. Department of Defense, Defense Intelligence Agency. pp. 36–44.
- ^ Kinard, Jeff (2003)
- ^ Kinard, Jeff (2003);Manufactured between about 1972 and 1984, the Heckler & Koch Model P9 and its military and police-type counterpart, the P9S incorporate numerous modern synthetic components.[...]The company introduced a caliber .45 ACP model in 1977.
- ^ a b Dockery, Kevin (2004). Weapons of the Navy SEALs. New York: Berkley Caliber. p. 55. ISBN 0-425-19834-0.
- ^ Ayoob, Massad (1995). The Story Of The Great, Lost Nine. Los Angeles, CA: Petersen Pub. Co. p. 98. ISBN 0822732564. Archived from the original on 2016-03-04. Retrieved 2013-01-19.
- ^ "World Infantry Weapons: Algeria". 2015. Archived from the original on 24 November 2016. Retrieved 11 January 2020.
- ^ Neville, Lee "European Counter-Terrorism Unit" ISBN 978-4890633852.
- ^ a b c d e Jones, Richard D. Jane's Infantry Weapons 2009/2010. Jane's Information Group; 35 edition (January 27, 2009). ISBN 978-0-7106-2869-5.
- ^ 大塚正諭「日本警察の拳銃」、『SATマガジン』、KAMADO、2009年1月、 50-57頁
- ^ "Brigade Speciale Beveiligingsopdrachten (BSB) Koninklijke Marechaussee - Arrestatieteam.nl". Archived from the original on 2011-09-30. Retrieved 2011-09-24.
External links
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