Snap cap devices configured to be inserted within an associated firearm are disclosed. The exemplary snap cap devices are made from or otherwise include a material configured to release corrosion protection molecules.

A firearm training system includes a practice barrel assembly. The practice barrel assembly is configured and dimensioned to replace the factory barrel of the firearm. The practice barrel assembly includes a processor, a radio transmitter, a firing pin strike sensor and a rechargeable battery. The processor is in wireless communication with an electronic device, such as a smart phone. To initiate a practice drill, the electronic device provides a start signal to the user and, simultaneously, an electronic timer is started. In response to the start signal, the user performs a practice drill that includes a dry fire of the firearm. The firing pin strike sensor detects the dry fire of the firing pin, which causes the stop of the electronic timer. The electronic device then displays the elapsed time between the start signal and the stop of the electronic timer.

A firearm training system includes a practice barrel assembly. The practice barrel assembly is configured and dimensioned to replace the factory barrel of the firearm. The practice barrel assembly includes a processor, a radio transmitter, a firing pin strike sensor and a rechargeable battery. The processor is in wireless communication with an electronic device, such as a smart phone. To initiate a practice drill, the electronic device provides a start signal to the user and, simultaneously, an electronic timer is started. In response to the start signal, the user performs a practice drill that includes a dry fire of the firearm. The firing pin strike sensor detects the dry fire of the firing pin, which causes the stop of the electronic timer. The electronic device then displays the elapsed time between the start signal and the stop of the electronic timer.

A cartridge to be fired through a barrel comprises a cartridge body with a maximum outer diameter, and a removable and replaceable driving band with an outer diameter greater than the diameter of the cartridge body. The driving band is positioned on the cartridge body such that it is the only part of the cartridge that engages the barrel through which it is fired.

An impact energy suppression assembly for an inert ammunition cartridge is disclosed wherein the assembly includes a barrel, a piston and a compression resistant device. The barrel has a bottom wall with an opening, at least one generally cylindrical integral sidewall, and an open upper end, and the piston has a head and push rod which extends outwardly from the piston head for connection with the compression resistant device. The piston and compression resistant device are inserted into the assembly barrel which is inserted into the hollow cavity of inert firearm ammunition for use as a training device.

An impact energy suppression assembly for an inert ammunition cartridge is disclosed wherein the assembly includes a barrel, a piston and a compression resistant device. The barrel has a bottom wall with an opening, at least one generally cylindrical integral sidewall, and an open upper end, and the piston has a head and push rod which extends outwardly from the piston head for connection with the compression resistant device. The piston and compression resistant device are inserted into the assembly barrel which is inserted into the hollow cavity of inert firearm ammunition for use as a training device.

A weighted body adapted for insertion into an existing gun magazine shell approximates the weight and/or density of live ammunition cartridges. The size and shape of the body allows for insertion down and into the slot at the top on the magazine, pressing down on the spring, with a sliding retainer stop or other feature to maintain the weight in position, filling or partially filling the internal volume of the magazine with the weight. The integral slide retainer stop attached at the top of the device is then moved or slid by the operator into a position that locks the weight into the magazine so it cannot pop back out due to spring pressure and will not interfere with other workings of the gun slide or receiver. A plurality of color-coded stops may be provided for use with the same or different weighted bodies corresponding to different calibers of ammunition.

A weighted body adapted for insertion into an existing gun magazine shell approximates the weight and/or density of live ammunition cartridges. The size and shape of the body allows for insertion down and into the slot at the top on the magazine, pressing down on the spring, with a sliding retainer stop or other feature to maintain the weight in position, filling or partially filling the internal volume of the magazine with the weight. The integral slide retainer stop attached at the top of the device is then moved or slid by the operator into a position that locks the weight into the magazine so it cannot pop back out due to spring pressure and will not interfere with other workings of the gun slide or receiver. A plurality of color-coded stops may be provided for use with the same or different weighted bodies corresponding to different calibers of ammunition.