| 摘要 |
The utility model relates to fire arms. A hand fire arm with foldable butt has barrel box with butt hinged on it, safety lever, this is in contact with trigger, and unit blocking trigger at not fighting position of butt, this is arranged as restrictor placed in the slot of barrel box, with one end it is in contact with slot provided in the hinge of the butt. To increase reliability of arms, spring is installed on restrictor, and restrictor with the other end is in contact with safety lever.
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