Abstract: A modified elongate ammunition magazine, the magazine being modified by modifying an elongate, single plane magazine by removing its end cap so as to provide an elongate modified magazine having an upper end for attaching to said magazine well of a firearm, a lower end, and a through passageway therebetween, and a clip leg base attached thereto and also attachable to a high capacity ammunition magazine housing, the clip leg base configured such that when it is attached to said modified magazine to construct a feed clip assembly, and when the clip leg base is also attached to a high capacity magazine, and when the upper end of the modified magazine is installed into a firearm, an ammunition passageway is defined from an ammunition outlet of a high capacity ammunition magazine housing, through the modified magazine, and to a firearm. Also provided is a last linked assembly including a loose or spreadable link.

Abstract: A modified elongate ammunition magazine, the magazine being modified by modifying an elongate, single plane magazine by removing its end cap so as to provide an elongate modified magazine having an upper end for attaching to said magazine well of a firearm, a lower end, and a through passageway therebetween, and a clip leg base attached thereto and also attachable to a high capacity ammunition magazine housing, the clip leg base configured such that when it is attached to said modified magazine to construct a feed clip assembly, and when the clip leg base is also attached to a high capacity magazine, and when the upper end of the modified magazine is installed into a firearm, an ammunition passageway is defined from an ammunition outlet of a high capacity ammunition magazine housing, through the modified magazine, and to a firearm. Also provided is a last linked assembly including a loose or spreadable link.

Abstract: A modified elongate ammunition magazine, the magazine being modified by modifying an elongate, single plane magazine by removing its end cap so as to provide an elongate modified magazine having an upper end for attaching to said magazine well of a firearm, a lower end, and a through passageway therebetween, and a clip leg base attached thereto and also attachable to a high capacity ammunition magazine housing, the clip leg base configured such that when it is attached to said modified magazine to construct a feed clip assembly, and when the clip leg base is also attached to a high capacity magazine, and when the upper end of the modified magazine is installed into a firearm, an ammunition passageway is defined from an ammunition outlet of a high capacity ammunition magazine housing, through the modified magazine, and to a firearm. Also provided is a last linked assembly including a loose or spreadable link.

Abstract: This invention relates to magazines for guns. The drum magazine of the present invention comprises one or two generally cylindrical drums with openings for the exit of cartridges from within the drum. A spring driven rotor within the drum carries two concentric rings of cartridges in a channel defined by the outer circumference of the rotor and the interior of the cylindrical drum wall. The rotor engages the inner concentric ring of cartridges and each cartridge in the outer ring of cartridges is forced to move by contact with a cartridge of the inner ring. During feeding, the cartridges are advanced as two rings until they meet the cam blade, which gradually forces the cartridges into a single column which moves approximately twice as fast as the velocity of the cartridges in the rotor. When the last cartridge leaves the rotor during feeding and enters the exit passage, a follower arm is provided to continue to push the last cartridge out of the magazine.