Open frame revolver with changeable drum

An open frame revolver, comprising:

• an upper frame and a lower frame pivotally connected together at a front of the open frame revolver, wherein the upper frame comprises of a muzzle, a barrel, and a hammer axle housing;
• a handle removably connected to the lower frame;
• a drum housing located in a rear end of the open frame revolver, wherein the drum housing comprises un upper drum housing located in the upper frame and a lower drum housing located in the lower frame;
• a spring assembly located in a cavity of the lower frame;
• a trigger mechanism located in the cavity of the lower frame, wherein the trigger mechanism through at least one trigger hook is connected to the spring assembly;
• a tension axle located in the lower frame, wherein the tension axle on one end and through a tension axle hook is connected to the spring assembly, and on the other end, has a female lock;
• a hammer axle supported by a housing of the upper frame, wherein the hammer axle has a male lock on one end and a hammer head attached to the other end of the hammer axle;
• a firing tip located on the hammer head;
• a drum positioned in the drum housing, wherein the drum is pivotally supported by the hammer axle, and the drum has a slotted housing at the radial center of the drum and a plurality of a spaced apart cartridge chambers;
• a safety lock located in the lower frame;
• and
• a frame lock located on the lower frame.