Patent ID: 8863422

Claim:
A magazine for a firearm comprising: a tubular body having a lower end and an upper end that defines an elongated passage that receives a spring; a detachable feed element positioned on top of the upper end of the passage; wherein the feed element has feed lips that retain cartridges in the magazine and permit the cartridges to be extracted forwardly; the feed element having opposed sides; an aperture defined by the opposed sides of the feed element; a feed control spring having one end attached to one of the opposed sides to provide a biasing force toward the other opposed side such that a cartridge cannot be extracted from the aperture except in a forward direction; the feed element having side walls with two protruding ear fasteners; each ear defining an aperture; the upper end of the body having two feed lip latches that protrude outwardly from the body; and wherein the feed lip latches are inserted into the apertures in the ear fasteners to releasably retain the feed element on top of the upper end of the passage of the body.