A shotgun ammunition conversion system has a detachable magazine well having a sleeve defining a rectangular passage adapted to removably receive an ammunition magazine, a boss extending forward of the sleeve and at a level above at least a portion of the sleeve, the boss being adapted to be received in the rear aperture of the magazine tube, and a tang extending rearward of the sleeve and defining a tang aperture operable to receive a fastener associated with a shotgun frame to secure the magazine well to the shotgun with the sleeve proximate and aligned with the loading port when the boss is received in the rear aperture of the magazine tube. The boss may have a lower cylindrical surface portion operable to contact a lower portion of the magazine tube adjacent to the rear aperture. The boss may be a cylindrical body.

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.

An auxiliary caliber weapon system that allows a conventional shotgun, such as a pump action shotgun or other firearm, including artillery weapons to be modified to fire ammunition rounds of a selectable caliber. The system includes a barrel assembly and to load an ammunition round within the shotgun or other firearm and a shotgun shell adapter of a selected auxiliary caliber is utilized. The shotgun includes a stock with grip a receiver and an internal magazine. The shotgun barrel is removed and the system's barrel assembly is attached to the shotgun, interfacing with the receiver. An ammunition round of a selected auxiliary caliber is inserted into the adapter, which is then placed into the magazine via a loading port. When the shotgun pump is actuated the adapter with the auxiliary caliber round is loaded from the magazine into the receiver, and is ready to be fired. After being fired, the pump is actuated again causing the adapter to be ejected out an ejection port and another adapter with an auxiliary caliber round to be loaded. For use with an artillery weapon, the adapter is scaled to a larger dimension to accommodate the larger size ammunition used but the functionality is the same.

An auxiliary caliber weapon system that allows a conventional shotgun, such as a pump action shotgun or other firearm, including artillery weapons to be modified to fire ammunition rounds of a selectable caliber. The system includes a barrel assembly and to load an ammunition round within the shotgun or other firearm and a shotgun shell adapter of a selected auxiliary caliber is utilized. The shotgun includes a stock with grip a receiver and an internal magazine. The shotgun barrel is removed and the system's barrel assembly is attached to the shotgun, interfacing with the receiver. An ammunition round of a selected auxiliary caliber is inserted into the adapter, which is then placed into the magazine via a loading port. When the shotgun pump is actuated the adapter with the auxiliary caliber round is loaded from the magazine into the receiver, and is ready to be fired. After being fired, the pump is actuated again causing the adapter to be ejected out an ejection port and another adapter with an auxiliary caliber round to be loaded. For use with an artillery weapon, the adapter is scaled to a larger dimension to accommodate the larger size ammunition used but the functionality is the same.

A launch canister for non-lethal pellets may be used to simulate the use of both personal and anti-personnel weapons. The canister features at least two components, an inner core and outer shell, that are nested and both featuring a plurality of launch bores. Gaskets ring the outside surface of the components, but have slight interface with the internal bores. The gaskets then hold a stack of pellets within each bore until the canister is placed in a launch device and the payload released.

A launch canister for non-lethal pellets may be used to simulate the use of both personal and anti-personnel weapons. The canister features at least two components, an inner core and outer shell, that are nested and both featuring a plurality of launch bores. Gaskets ring the outside surface of the components, but have slight interface with the internal bores. The gaskets then hold a stack of pellets within each bore until the canister is placed in a launch device and the payload released.

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.

A launch canister for non-lethal pellets may be used to simulate the use of both personal and anti-personnel weapons. The canister features at least two components, an inner core and outer shell, that are nested and both featuring a plurality of launch bores. Gaskets ring the outside surface of the components, but have slight interface with the internal bores. The gaskets then hold a stack of pellets within each bore until the canister is placed in a launch device and the payload released.

A shotgun ammunition conversion system has a detachable magazine well having a sleeve defining a rectangular passage adapted to removably receive an ammunition magazine, a boss extending forward of the sleeve and at a level above at least a portion of the sleeve, the boss being adapted to be received in the rear aperture of the magazine tube, and a tang extending rearward of the sleeve and defining a tang aperture operable to receive a fastener associated with a shotgun frame to secure the magazine well to the shotgun with the sleeve proximate and aligned with the loading port when the boss is received in the rear aperture of the magazine tube. The boss may have a lower cylindrical surface portion operable to contact a lower portion of the magazine tube adjacent to the rear aperture. The boss may be a cylindrical body.

A representative reverse-saboted sidearm system includes: a sidearm having a barrel assembly with an inner wall defining a longitudinally extending bore; and a round of reverse-saboted ammunition having a non-necked casing, a reverse sabot, and a projectile, the reverse sabot mounted at a discharge end of the casing with a distal end of the reverse sabot extending outwardly from the casing, the reverse sabot exhibiting a diameter corresponding to a diameter of the casing and defining a receiving passage aligned with a longitudinal centerline of the casing, the projectile being at least partially disposed within the receiving passage of the reverse sabot; the inner wall of the barrel assembly being configured to engage an exterior surface of the projectile to direct the projectile.