The M12 Sidewinder can hold up to 1600 rounds. Sliding door for easy refilling.
The compact size allows the M12 Sidewinder to be used anywhere you'd use a traditional speedloader. It fits perfectly inside any double M4 mag pouch to easily be carried into the field.
Spin the crank as fast as you want. Each revolution loads 12 BB's and a clutch kicks in when full so you can never overfill a magazine.