Speed loader for firearm magazines

A method for loading a firearms magazine using a speed loader, comprising:

• inserting an empty magazine into a retainer of the speed loader;
• loading cartridges into a hopper feeding into a loading chamber aligned with the magazine, causing a single cartridge to drop into the loading chamber;
• depressing a first spring-loaded plunger starting in a first initial position against a follower of the magazine until the first plunger is locked in a depressed position against an ejection spring of the magazine;
• pushing a second plunger starting in a second initial position against the single cartridge, causing the single cartridge to slide into the magazine without further depressing the ejection spring until the cartridge is in a loaded position;
• releasing the first spring-loaded plunger, whereby the first spring-loaded plunger returns to the first initial position;
• returning the second plunger to the second initial position, causing another cartridge to drop into the loading chamber;
• repeating the depressing, the pushing, the releasing and the returning until the magazine is filled with a desired number of cartridges not exceeding the magazine's capacity, wherein the depressing, the pushing, the releasing and the returning are driven by a motor coupled to the first and second plungers, the motor driving the first and second plungers via an idler gear, the idler gear driving the first plunger by a cam configured to rotate with the idler gear around a shaft, and the idler gear is coupled to the second plunger by at least one link pivotably connected to the idler gear;
• and
• wherein the cam and at the least one link are configured to operate with the idler gear such that the motion of the first and second plungers is synchronized.