| 摘要 |
FIELD: small arms for shooting both combat and practice ammunition. SUBSTANCE: in practice version the standard weapon additionally uses replaceable subcaliber barrel 9 with geometric locking of it with cartridge chamber 7 of standard barrel 2 for practice ammunition 14 with an easily shaped bullet, caliber Dy.n. The bore diameter of the subcaliber barrel equals (0.6 to 0.8)Dy.n. Subcaliber barrel 9 is furnished with elements fixing it against longitudinal displacements, made, for instance, in the form of supporting shoulder 10 on the breech side of subcaliber barrel 9 engageable with thrust end 11 of standard cartridge chamber 7, and nut 13 installed on threaded section 12 of the subcaliber barrel muzzle up to the stop against the muzzle end of standard barrel 2. Subcaliber barrel 9 may have longitudinal slots 19 of the preset length and width at a preset distance from the breech. The bore of subcaliber barrel 9 is furnished with entry section 17 and outlet section 18. EFFECT: possibility of shooting practice ammunition from standard weapon at reliable operation of automatics and trauma safety. 5 cl, 6 dwg |
