Abstract: An apparatus for the cleaning of firearms comprise a rack dimensioned to support a plurality of disassembled firearm elements within a tank. A cleaning fluid surrounds the firearm elements for the removal of ignition residue and other unwanted particles from the surfaces of the elements and placing the removed particles in suspension within the fluid. The fluid is agitated, such as by an ultrasonic source mounted to the tank, to enhance the contact between said cleaning fluid and said firearm elements. A pump provides for the flow of fluid within said tank, from the tank to an external filter, and from the filter back to the tank. The filter is adapted to remove the suspended particles from said solution and onto a replaceable filter media. The fluid can be heated to further improve cleaning performance.