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The Mk 19 grenade launcher is an American automatic belt-fed grenade launcher. When the grenade launcher is fired, the gases generated by the combustion of the powder charge eject the grenade from the barrel channel, and part of the powder gases are discharged back through the nozzle. This generates a reactive force that balances the recoil force. The US Naval Ordnance Station Louisville created a prototype of an automatic grenade launcher for 40×53 mm ammunition in 1967. In the summer of 1968, the first mass-produced grenade launchers began to enter service with the US Army. From 1981 to 2000, the US produced more than 25,000 Mk 19 Mod 3 grenade launchers. It is currently in service with the Armed Forces of Ukraine.

The publication is intended for a wide range of interested readers: conscripts and servicemen, law enforcement officers, judicial officials, legal practitioners, higher education students, scientists, teachers of secondary schools who teach the subject "Defence of Ukraine", teachers of higher education institutions, etc. It will be useful in the training of servicemen of the Armed Forces of Ukraine, the National Guard of Ukraine, the National Police of Ukraine, and the Security Service of Ukraine.