US Patent 11603177 Firearm for unmanned underwater vehicles

An underwater firearm is disclosed. The underwater firearm includes a barrel for receiving an ammunition on a first end and a barrel cap for covering a second end of the barrel. The underwater firearm also includes a capsule having a firing pin and contains a reactive material. The reactive material can be ignited by an electrical ignitor in order to propel the firing pin to strike the ammunition. A housing is utilized to contain the capsule and the electrical ignitor.