Double barrel bolt action repeating rifle

Double layer armor

Double layer armor

Double loop ammunition magazine of compact construction

Double piston propulsion unit

Double swivel toggle release

Double toggle gripping apparatus

Double truss structural armor component

Double-action rammer

Double-ended ammunition handling system for rapid-fire guns

Double-feed sprocket arrangement for munition changing

Double-feed sprocket arrangement for munition changing in automa

Downhole charge carrier

Drive devices

Drive devices

Drive for a machine gun

Drive mechanism for a Gatling gun

Drive system for a Gatling type gun

Driver for power tools

Driving mechanism for the cover of an ammunition magazine on arm