Heckler & Koch P11

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HK P11

HK P11 with a test device attached
Type Underwater Pistol
Place of origin Flag of West Germany West Germany
Production history
Designed 1970s
Produced 1976
Specifications
Weight 1.2 kg (2.7 lb) loaded
Battery pack 700 g
Length 200 mm (7.874 in)
Width 60 mm (2.362 in)

Cartridge about 100 mm (4 in) long, miniature solid-fuelled rocket with fins
Caliber 7.62 mm x 36
Action Electric actuated
Effective range 30 m in air, 10 to 15 m underwater
Feed system 5 rounds, each in a barrel
Sights 14.6 cm between sights

The HK P11 is a Heckler & Koch pistol designed as an underwater firearm. Since ordinary-shaped bullets are inaccurate and have a very short range when used underwater, this pistol fires steel darts about 10 cm long. It has five barrels, each of which is loaded with a cartridge, giving the gun a pepper-box appearance, and it is electrically ignited from a battery pack in the pistol grip.[1] After firing all five cartridges, the barrel unit must be sent back to its manufacturer for reloading.[2] It is very similar to its predecessor, the M1 Underwater Defense Gun.

The P11 is reportedly in service with German Kampfschwimmer[3] and KSK, the British SBS,[4] and 100 units of U.S. Special operations forces.[5] It is also used by Dutch, Danish, Italian Navy COMSUBIN, Norwegian, French and Israeli combat divers.[6]

In the past, Heckler & Koch has denied knowledge of its existence,[7] but despite this the P11 has become relatively well-known, appearing in the 2003 film Tomb Raider: The Cradle of Life,[8] and the 2002 video game James Bond 007: Nightfire.[9]

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  1. ^ Heckler & Koch HK P11 Underwater Pistol (HTML). Modern Firearms. Retrieved on 2008-03-29.
  2. ^ Underwater Pistol - HK P11 (HTML). Special Boat Service: Information on the SBS. Retrieved on 2008-03-28.
  3. ^ Straight Dope Staff Report: How far can bullets go when fired into water? (HTML). The Straight Dope. Retrieved on 2008-03-28.
  4. ^ SBS Weapons - HK P11 Underwater Pistol (HTML). Elite UK Forces. Retrieved on 2008-03-28.
  5. ^ HKPRO: The HK P11 (HTML). HKPRO. Retrieved on 2008-03-28.
  6. ^ Southby-Tailyour, Ewen (2005). Jane's Special Forces Recognition Guide. New York: Collins, 366. ISBN 0-00-718329-1. 
  7. ^ Dockery, Kevin (2004). Weapons of the Navy SEALs. New York: Berkley, 68. ISBN 0-425-19834-0. 
  8. ^ Tomb Raider: The Cradle of Life corrections (HTML). Movie Mistakes. Retrieved on 2008-03-28.
  9. ^ Nightfire Weapons (HTML). [009] Nightfire Pro Fair Play. Retrieved on 2008-03-28.

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