FIREARM SYSTEM AND METHODS Russian patent published in 2019 - IPC F41A15/14 

FIELD: weapons.

SUBSTANCE: group of inventions relates to firearms. Firearm comprises a breech frame, a bolt carrier, a bolt, a gas tube. On the breech frame there is a cam with an unlocking surface with a double cutout. Shutter comprises multiple warheads, an ejector with an ejector spring and a stepped pin, a gas piston with rings to reduce gas flow. Area of section of combat ledges is larger than area of section of combat projections of standard weapon M16/M4. Rings of gas piston of the gate are paired with locks for mutual fixation. Barrel has combat projections for interaction with the bolt action protrusions. Gas tube is intended for supply of gas from the barrel of the weapon through the sighting device to the gas piston of the bolt through the key of the bolt carrier. On part of tube there are heat dissipators in form of triangular notches. Also disclosed is a method of making gas piston rings, in which pairs of rings are made conjugated by means of fixing elements. Described is a method of producing gas tubes, in which heat scatterers are formed on part of a tube in the form of samples of material of triangular shape.

EFFECT: technical result is improvement of safety and reliability of firearms.

30 cl, 46 dwg