CARTRIDGE FOR EXISTING MODEL OF MINIATURE FIREARMS Russian patent published in 2013 - IPC F42B5/00 F42B5/02 F42B5/45 

FIELD: weapons and ammunition.

SUBSTANCE: cartridge for an existing model of miniature firearms comprises a propellant powder and an element interacting with a bullet imitator during firing. The propellant powder is placed in the cartridge case. The cartridge is made from two cases telescopically connected to each other. The inner cartridge case is equipped with an edge for extraction of the cartridge. The propellant powder is installed in the cavity of the inner cartridge case. In the muzzle there is a piston with a diameter equal to the diameter of the inner cavity of the outer cartridge case, interacting with the bullet imitator during firing. In the mouth of the outer cartridge case there is a cylindrical channel arranged coaxially. The outer cartridge case is equipped with gas discharge holes in the rear part, at the level of cut of the inner cartridge case when extended.

EFFECT: possibility is provided to create a new collection of miniature firearms.

2 dwg