The invention relates to a device for the destruction of materials, in particular, to a device for destroying the integrity of concrete, brick and other similar structures and obstacles, and can be used in emergency situations, at work in the construction, reconstruction, repair and testing of buildings and structures. The apparatus comprises a receiver, a firing mechanism, gas operated mechanism, the barrel consisting of a cartridge chamber and a rifled part, a gate frame installed with the possibility of contacting the front position with the tapered supporting surface of the receiver. To the muzzle of the barrel coaxially with and sealingly docked pipe, the rear of which is attached the feeder with abrasive powder in a container, which cavity communicates with the cavity of the nozzle through the opening in the wall of pipe, and inside the front of the nozzle is mounted nozzle insert with a flue gas duct in the form of Laval nozzle critical section area smaller than the nozzle passage area, while in the chamber during firing blank cartridges are placed. Hermetically docked to the muzzle of the pipe is formed, firstly, as an option, a passage area equal to the passage section area of the barrel, and secondly, as an option - a passage sectional area less than the flow cross section of the trunk area, in the third, both option - a flow area greater than the flow area of the trunk. Message container feeder cavity with a cavity nozzle effected, alternatively, by a tube inserted through the hole in the pipe wall, wherein a portion of said tube located in the cavity of the nozzle is bent in the direction of the nozzle liner and is coaxial with it. Feeder abrasive powder is filled, as a variant, or in the form of corundum (alumina - Al 2 O 3), or in the form of quartz sand (silica - SiO 2), or in the form of construction sand (mainly silica - SiO 2). 1 n.p.f. 7 z.p.f. 4 yl.
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