Abstract: A housing section for a cartridge magazine for a portable firearm, the housing section including: a housing section shell including an inside shell surface, an outside shell surface, and an interior space which forms a first region and a second region; a housing section top side having a first opening cross section; a housing section bottom side having a second opening cross section; a first cross section forming the first region and being configured for accommodating a first number of rows of a plurality of cartridges arranged next to one another; and a second cross section forming the second region and being configured for accommodating a second number of rows of the plurality of cartridges arranged side-by-side, the second number and the first number differing from one another by at least one full numerical value, the first cross section being consistent with the first opening cross section.

Abstract: A feeder for a cartridge magazine for a portable firearm includes: a first cartridge supporting surface at an upper region; a second cartridge supporting surface, the first cartridge supporting surface and the second cartridge supporting surface being arranged in a third spatial direction spaced at a distance from one another in such a way that a cartridge for the portable firearm is movable along the feeder in a direction of a front region; a front guide part including a front support surface; and a rear guide part including a rear support surface, a rigid part, and a movable part, the rear support surface including a first support surface and a second support surface, the first support surface being on the rigid part, the second support surface being on the movable part.

Abstract: A barrel for a handgun includes an imaginary barrel bore axis along which it extends in the x-direction, around which barrel axis the following are formed in the interior of the barrel, in succession from a rear end to a front end: a cartridge chamber, which has a first diameter; a cartridge chamber opening, which has a second diameter; a conical transition, which transitions from the second diameter to a third diameter, which is associated with the guide region; and a barrel opening, an end face being formed around the cartridge chamber opening, and the barrel being suitable for a bullet driven by hot gases to accelerate therethrough. The end face is at least 1.5 times larger than the cross-sectional surface formed by the third diameter.

Abstract: A housing for a cartridge magazine for a firearm including an interior space consisting of a first and a second region. Between the first and the second region a transitional region is formed which connects the first and second region with one another. The inside surface of the front wall extends in the direction of the Z-axis in at least one region along a first circular path, the inside surface of the rear wall extends in at least one region in the direction of the Z-axis along a second circular path. The first region is designed for accommodation of four stacks of cartridges arranged directly adjoining one other and preferably offset in Z-direction relative to one another. The second region being designed for accommodation of two stacks of cartridges arranged directly adjoining one another and preferably offset in Z-direction relative to one another.

Abstract: A housing for a cartridge magazine for a firearm including an interior space consisting of a first and a second region. Between the first and the second region a transitional region is formed which connects the first and second region with one another. The inside surface of the front wall extends in the direction of the Z-axis in at least one region along a first circular path, the inside surface of the rear wall extends in at least one region in the direction of the Z-axis along a second circular path. The first region is designed for accommodation of four stacks of cartridges arranged directly adjoining one other and preferably offset in Z-direction relative to one another. The second region being designed for accommodation of two stacks of cartridges arranged directly adjoining one another and preferably offset in Z-direction relative to one another.