An ammunition holder and loader device for shotshells for a shotgun has two adjacent chambers separated by a selected spacing and has a planar body. The body has a pair of cartridge receptacles, each having a resilient retainer element configured to removably retain a rear portion of a shotshell against limited extraction force and to enable removal of the shotshell in response to deliberate force greater than the limited force. The receptacles have opening facing opposite directions.

An ammunition holder and loader device for shotshells for a shotgun has two adjacent chambers separated by a selected spacing and has a planar body. The body has a pair of cartridge receptacles, each having a resilient retainer element configured to removably retain a rear portion of a shotshell against limited extraction force and to enable removal of the shotshell in response to deliberate force greater than the limited force. The receptacles have opening facing opposite directions.

A vehicle, in particular a tank, having a turret, on which a gun having a large-calibre gun barrel is secured, and comprising an auto-loader positioned behind the turret, via which auto-loader ammunition can be automatically supplied to the gun barrel. In order to achieve simplified automatic loading of the gun barrel with ammunition, without impairing the survival capabilities of the crew as a result, the auto-loader is replaceably secured on the outside of the turret as a separate, modular unit. A magazine located in the auto-loader for receiving the ammunition can also be designed as an interchangeable magazine that can be replaced. An electronic system of the auto-loader is housed in the vehicle, specifically in the turret. The selection of ammunition in the auto-loader and the conveying out of the auto-loader are carried out via at least one mechanical interface, e.g. a power take-off, between the turret and the auto-loader.

A magazine is provided for a firearm. The magazine comprises a locking mechanism. The locking mechanism has a user interface adapted to enable a user to select between a locked condition and an unlocked condition. The locking mechanism has a rotor movable between a first rotational position when the locking mechanism is in the locked condition and a second rotational position when the locking mechanism is in the unlocked condition. The magazine comprises an elongated shaft connected to the rotor. The magazine comprises a block element connected to the elongated shaft. The block element is adapted to move between a first position when the locking mechanism is in the locked condition in which at least one of firearm operation and magazine extraction are prevented, and a second position when the locking mechanism is in the unlocked condition in which firearm operation and magazine extraction are enabled.

A magazine is provided for a firearm. The magazine comprises a locking mechanism. The locking mechanism has a user interface adapted to enable a user to select between a locked condition and an unlocked condition. The locking mechanism has a rotor movable between a first rotational position when the locking mechanism is in the locked condition and a second rotational position when the locking mechanism is in the unlocked condition. The magazine comprises an elongated shaft connected to the rotor. The magazine comprises a block element connected to the elongated shaft. The block element is adapted to move between a first position when the locking mechanism is in the locked condition in which at least one of firearm operation and magazine extraction are prevented, and a second position when the locking mechanism is in the unlocked condition in which firearm operation and magazine extraction are enabled.

The present invention provides an auxiliary bullet loader for a magazine, which includes a housing, wherein the housing is provided with a mounting space for accommodating a magazine, a first swinging mechanism is connected to a top portion of the housing, the first swinging mechanism includes a first pressing plate, the first pressing plate includes a first engaging end, the first engaging end extends obliquely downwards into the mounting space, and a bullet inlet of the magazine when the magazine is loaded into the mounting space faces upwards, the first engaging end is inserted into the magazine and swings relative to the housing under an action of the magazine, thereby pressing a follower within the magazine.

A spring comprises a continuous wire member formed into a plurality of coils along a central axis. Each of the plurality of coils comprises a plurality of straight portions extending between bend portions each extending from one of the straight portions. The plurality of coils form a first spring body and a second spring body, each spring body comprising at least three coils and having a first end and a second end with the first end of the second spring body connected to the second end of the first spring body. In an unloaded state the first spring body has a first unique pitch distance between bend portions of each pair of adjacent coils and the first unique pitch distance decreases from the first end of the first spring body to the second end of the first spring body, and the second spring body has a second unique pitch distance between bend portions of each pair of adjacent coils and the second unique pitch distance increases from the first end of the second spring body to the second end of the second spring body.

A simulated magazine useful to provide for simulated firing of a firearm includes a cycling lever arm which is depressed once every time the firearm is cycled; a linearly shaped counting plunger; a plunger spring biasing the plunger in an upward position; and a spring assembly connected to the cycling lever arm and acting upon the plunger. Depression of the cycling lever arm causes the plunger to move incrementally upward. When the plunger is in a fully up state, a slide catch trigger extends upward from the magazine, the slide catch trigger causing a slide of the firearm to remain in a back, open state.

A simulated magazine useful to provide for simulated firing of a firearm includes a cycling lever arm which is depressed once every time the firearm is cycled; a linearly shaped counting plunger; a plunger spring biasing the plunger in an upward position; and a spring assembly connected to the cycling lever arm and acting upon the plunger. Depression of the cycling lever arm causes the plunger to move incrementally upward. When the plunger is in a fully up state, a slide catch trigger extends upward from the magazine, the slide catch trigger causing a slide of the firearm to remain in a back, open state.

A magazine is provided for a firearm. The magazine comprises a locking mechanism. The locking mechanism has a user interface adapted to enable a user to select between a locked condition and an unlocked condition. The locking mechanism has a rotor movable between a first rotational position when the locking mechanism is in the locked condition and a second rotational position when the locking mechanism is in the unlocked condition. The magazine comprises an elongated shaft connected to the rotor. The magazine comprises a block element connected to the elongated shaft. The block element is adapted to move between a first position when the locking mechanism is in the locked condition in which at least one of firearm operation and magazine extraction are prevented, and a second position when the locking mechanism is in the unlocked condition in which firearm operation and magazine extraction are enabled.