US Patent 9470464 Self-leveling follower and magazine

A follower for a firearm magazine is disclosed, with a platform that may support a cartridge and has a top surface defining a plane and a bottom surface. The front end may be coupled to a front portion of the platform and engage a spring and a magazine body. The interior surface of the front end may be substantially perpendicular to the bottom surface of the platform and form an obtuse angle with the plane of the platform. The rear end may be coupled to a rear portion of the platform and engage the spring and the magazine body. The interior surface of the rear end may be perpendicular to the bottom surface of the platform and form an acute angle with the plane of the platform. The front end may extend further below the platform than does the rear end.