Abstract: A firearm magazine comprises an elongate container which has an end opening and is partitioned internally into two contiguous housings. First longitudinal portions of the housings are each adapted to hold two stacks of cartridges in a staggered arrangement. A subsequent longitudinal portion of each housing has a width which decreases gradually towards the opening of the container and ends with a width substantially equal to the diameter of a cartridge. At their ends facing the opening, the housings open into an end portion of the container which also has a width that decreases gradually towards the opening. An elevator member is movable in the container under the action of resilient means to push the cartridges towards the opening. The bearing and thrust surfaces of the elevator member and the internal walls of the container are shaped so as to allow the removal of successive cartridges housed in the container without jamming, when in use in a firearm.

Abstract: The automatic fire arm is provided with a bolt and hammer which reciprocate along the axis of the barrel. A first spring normally biases the bolt against the breech end of the barrel and a second spring normally biases the hammer against a firing pin which is slidably mounted within the bolt. A moveable retaining lever is pivotally mounted below the chamber in which the bolt and hammer are located. An upwardly extending projection is provided on each end of the lever which is extendable into the chamber through axially spaced apertures. A trigger mounted pin normally holds the lever with the rearmost projection extending into the chamber so that upon retraction of the bolt and hammer the hammer will be held in cocked position by the rearmost projection when the bolt returns to engage the breech end of the barrel.