Handheld firearms with indexed magazine and compact firing mechanism

A handgun comprising

• a magazine comprising
• a housing with a plurality of aligned spaced firing chambers, each firing chamber being shaped and sized to hold a cartridge with a bullet for firing,
• a magazine top, a magazine bottom, a magazine front and a magazine back, and an outer cam side, and a second side,
• a cam track on the outer cam side of the magazine between the magazine front and the magazine back, said cam track comprising a three dimensional waveform channel extending from about the magazine bottom to about the magazine top and including a waveform cycle for each firing chamber;
• and
• a stock comprising a stock bottom, a stock top, and a passage extending from the stock bottom to the stock top, said passage being shaped and sized to receive the magazine and allow the magazine to progress linearly through the passage, and said passage including a front surface, a rear surface, a first side surface and a second side surface, and a barrel opening in the front surface between the stock top and stock bottom;
• a barrel through which a bullet of a cartridge fired from one of the firing chambers may travel, said barrel extending from the barrel opening in the front surface of the passage;
• a trigger comprising a finger actuatable lever, said trigger being movable from an at rest position to a firing position;
• a firing pin configured to strike the cartridge for firing when the firing chamber containing the cartridge is aligned with the barrel at the firing position and the trigger is moved to the firing position;
• a cam follower riding in the cam track and operably coupled to the trigger, said cam follower urging the magazine towards one of the stock top and stock bottom when the trigger is moved to the firing position, and said cam follower urging the firing chamber containing the cartridge to be fired into alignment with the barrel at the barrel opening when the trigger is moved to the firing position.