Technical Specifications

Type	Underwater Pistol
Country of origin	Germany
Manufacturer	Heckler & Koch
Designed	1970s
Produced	1976
In service	1977–present
Used by	see Users
Weight	1200 g loaded · Battery pack 700 g
Length	200 mm
Width	60 mm
Caliber	7.62 mm
Cartridge	7.62×36mm, about 100 mm long, miniature solid-fuelled rocket with fins
Action	Electric actuated
Feed	5 rounds, each in a barrel
Range	30 m in air, · 10 to underwater

Data from Heckler & Koch P11 (Wikipedia, 2026-09-22). Text licensed under CC BY-SA. Image: Public domain — me.

Compatible Calibers (1)

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