Heckler & Koch P11
| HK P11 | |
|---|---|
OS P11 | |
| Type | Underwater Pistol |
| Place of origin | Germany |
| Service history | |
| In service | 1977–present |
| Used by | see Users |
| Production history | |
| Designed | 1970s |
| Manufacturer | Heckler & Koch |
| Produced | 1976 |
| Specifications | |
| Mass | 1,200 grams (42 oz) loaded Battery pack 700 grams (25 oz) |
| Length | 200 millimetres (7.9 in) |
| Width | 60 millimetres (2.4 in) |
| Cartridge | 7.62×36mm, about 100 millimetres (3.9 in) long, miniature solid-fuelled rocket with fins |
| Caliber | 7.62 mm |
| Action | Electric actuated |
| Effective firing range | 30 metres (98 ft) in air, 10 to 15 metres (33 to 49 ft) underwater |
| Feed system | 5 rounds, each in a barrel |
| Sights | 14.6 centimetres (5.7 in) between sights |
The Heckler & Koch P11 is an underwater firearm developed in 1976 by Heckler & Koch. It is loaded using a pepper-box-like assembly, containing five sealed barrels each containing an electrically-fired projectile. Two styles of barrel assembly can be used: one containing five 7.62×36mm flechette darts for use underwater, or five 133-grain bullets for use above water.