According to the Criminal Law, if the perpetrator constitutes an accomplished crime of illegally mailing guns, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than 10 years; If the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than 10 years, life imprisonment or death. Illegal mailing refers to the act of sending guns through the post office in violation of regulations to avoid postal inspection.
Legal basis:
Article 125 of the Criminal Law
Whoever illegally manufactures, trades in, transports, mails or stores guns, ammunition or explosives shall be sentenced to fixed-term imprisonment of not less than three years but not more than 10 years; If the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than 10 years, life imprisonment or death.
Whoever illegally manufactures, trades in, transports or stores toxic, radioactive, infectious disease pathogens and other substances, thereby endangering public security, shall be punished in accordance with the provisions of the preceding paragraph.
Where a unit commits the crimes mentioned in the preceding two paragraphs, it shall be fined, and the persons who are directly in charge and the other persons who are directly responsible for the crime shall be punished in accordance with the provisions of the first paragraph.