Mk 1 Underwater Defense Gun

The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War. Similar to other underwater firearms, it fires a special 4.25-inch (108 mm) metal dart as its projectile.

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1970  Wikidata
underwater firearm, United States, 
Heckler & Koch P11, SPP-1 underwater pistol, underwater firearm, 

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Location: KML, Cluster Map, Maps,

1970-01-01T00:00:00Z

1970-01-01T00:00:00Z

1970 Mk 1 Underwater Defense Gun

1945-01-01T00:00:00Z

1945-01-01T00:00:00Z

Cold War

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Frameless

Type	Subtype	Date	Description	Notes	Source