Are gun slingshots illegal?

Gun slingshots are not illegal.

Where one of the following conditions is met, it can be recognized as an imitation firearm:

1. It meets the constituent elements of firearms stipulated in the Law of the People's Republic of China on the Control of Firearms, and the muzzle specific kinetic energy of the metal pellet or other substance fired is less than 1.8 joules/square centimeter (excluding this number) and greater than 0.16 joules/square centimeter (excluding this number);

2.

3, shape, color and the same or similar to the standard firearms, and the shape of the length of the dimensions between the corresponding standard firearms between one-half of the length of the full length of the size of the gun and double the size of the gun.

According to Article 128 of the Criminal Law:

Anyone who violates the regulations on the management of firearms by illegally possessing or concealing them shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention, or control; if the circumstances are serious, he or she shall be sentenced to fixed-term imprisonment of not less than three years and not more than seven years.

Expanded Information:

The Law of the People's Republic of China on the Control of Firearms

The Law of the People's Republic of China on the Control of Firearms

Article 13 The State implements a special licensing system for the manufacture, distribution and sale of firearms. Without authorization, no unit or individual may manufacture, buy or sell firearms.

Article 14 Guns for official use shall be manufactured by enterprises designated by the State.

Article 15 of the manufacture of civilian firearms by the relevant competent departments of the State Council, the State Council public security department to determine the enterprise.

Enterprises that dispense civilian firearms shall be determined by the public security organs of the people's governments at the provincial level.

Enterprises that manufacture firearms for civilian use shall be issued licenses to manufacture firearms for civilian use by the public security department of the State Council. Distribution of civilian firearms enterprises, the public security organs of the provincial people's government to issue civilian firearms distribution license. Civilian firearms manufacturing license, distribution license is valid for three years; expiration of the validity period, the need to continue to manufacture, distribution of civilian firearms, shall reapply for a license.

Article 16 of the State on the manufacture and distribution of civilian firearms quantity, the implementation of quota management.

Manufacturing of civilian firearms annual quota, by the State Council forestry, sports and other relevant departments, the public security organs of the people's governments at the provincial level proposed by the State Council's public security departments to determine and unify the preparation of the serial number of civilian firearms, under the civilian firearms manufacturing enterprises.

The annual quota for the distribution of civilian firearms shall be proposed by the relevant competent departments of the State Council in charge of forestry and sports, and the public security organs of the people's governments at the provincial level, and determined by the public security departments of the State Council and down to the civilian firearms distribution enterprises.

Baidu Encyclopedia - Criteria for Determining Imitation Firearms

Baidu Encyclopedia - Law of the People's Republic of China on the Administration of Firearms