FIELD: weapons and ammunition.
SUBSTANCE: muzzle attachment includes case with expansion chamber inside. Rear chamber part is contracting and thus forms an obturating band. Behind the band, annular expansion and radial slots are made. Rear part of the case ends with an internal thread section. Such muzzle attachment design protects thread section against powder gas, and muzzle attachment is screwed off with ease regardless of arms cleaning regularity.
EFFECT: improved performance.
2 dwg
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