The M12 Sidewinder is an essential piece of gear for every airsoft player's kit. With the quick spin of a crank, almost any M4 mid-cap magazine can be fully loaded in under 5 seconds. The compact size of the M12 Sidewinder perfectly fits inside any double M4 mag pouch to easily be carried into the field. The capacity of this speed loader allows you to load twelve mid caps before needing to refill. Designed by an airsoft player for the players, the M12 Sidewinder is the last speed loader you'll ever need.