FIELD: firearm and equipment, aimed for provision of barrel life of automatic weapon, mainly of that firing long bursts.
SUBSTANCE: the device is made in the form of a casing enveloping the barrel with a contraction in the area of the muzzle end up to the diameter not smaller than the bullet diameter with a subsequent behind the muzzle end. Near the muzzle end the casing is installed on the barrel by means of ribs. An axial-flow turbine is installed on the ribs facing the muzzle end. Through holes with increasing diameters from the muzzle end are made on the surface of the casing.
EFFECT: provided enhanced service life of the automatic weapon barrel.
4 dwg
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