Patent ID: 8607489

Claim:
A magazine for storing and delivering ammunition to a firearm, the magazine comprising: an elongated housing having an internal chamber for holding a plurality of cartridges, the elongated housing having an outer sidewall, a top section, a middle section and a bottom section; the top section being removable and comprising an exit fixture to position each cartridge for proper chambering in the firearm; the middle section having a generally rectangular cross-section and defined by a first width and a first depth; the bottom section defined by a second width and a second depth that are larger in dimension than the first width and the first depth, respectively, such that the bottom section will be able to receive the middle section of another magazine formed with a middle section having a generally rectangular cross-section and defined by the first width and the first depth; a removable bottom cover closes the bottom section; a spring comprising a plurality of removable spring segments, the spring configured to rest on the removable bottom cover; and a c-shaped member fixed to each removable spring section in the plurality of removable spring segments, said c-shaped member configured to slidably receive another removable spring section so as to link said removable spring segments together to approximately align on the same axis within the elongated housing.