Development background
For a long time, the police weapons in our country are all selected from military weapons, and there is no independent and systematic equipment series. In this field, we are far behind developed countries in the world. In recent years, China has successively produced and equipped 38mm and 35mm anti-riot weapons, which have played an effective role in quelling riots and stabilizing social order.
However, at present, the police engaged in public security tasks in China mostly use seven kinds of weapons when performing their tasks. 62mm caliber pistols, submachine guns, automatic rifles and other deadly weapons. The warheads of military weapons have high kinetic energy, great power and strong lethality, which can not be used at will in many occasions, and sometimes it is easy to hurt innocent people, making it impossible for the police to handle all kinds of complex scenes with ease. In many developed countries in the world, the development of anti-riot weapons precedes that of China, and the varieties and specifications are very complete, among which the use of 12 caliber police shotguns is particularly common. Therefore, it is necessary for our country to develop a kind of police riot weapon with wide application and strong adaptability. Based on this demand, China has developed 97 formula 18. 4 mm riot gun.
Tactical task type 97 18. 4mm riot gun is equipped with tear gas bomb, dye bomb, riot kinetic energy bomb, riot kinetic energy shotgun, tear Grenade and killing shotgun, which is used to subdue violent criminals hidden in buildings within 50m distance and disperse mobs gathered illegally within 35 ~ 100 m distance. It is mainly equipped for criminal investigation, public security, patrol, riot prevention and other police of public security organs at all levels in China, as well as full-time guards and escorts who meet the requirements of the People's Republic of China (PRC) Gun Control Law.
main feature
(1) The whole gun is easy to assemble and disassemble and has good service. 97 formula is 18. The 4 mm riot gun consists of 78 parts. The whole gun cannot be completely broken down into five parts. Disassembly method: unscrew the cylinder fixing nut 1 counterclockwise by hand, and then remove the cylinder. Press the left switch reed with your right thumb, push the front handle forward, and then remove the downstream valve body assembly and bolt assembly. If necessary, you can also punch out the front connecting shaft 2 and the rear connecting shaft 3 with a punch, and pull the trigger holder outward to take out the starter assembly. The whole gun didn't completely decompose.
If it is a used gun, it can be wiped after it is not completely decomposed. The order of combination is opposite to that of decomposition.
(2) Various shapes, suitable for various environments. On the premise that the basic structure remains unchanged, the 4mm riot gun can have many shapes, which can be realized by replacing the front grip, hand guard, rear grip, fixed bracket and folding bracket. Due to the difference in shape and structure, the shape, size and holding mode of riot gun have changed, which is more suitable for police officers who perform tasks in different environments and occasions. The transformation method is very simple, and the operator can replace it in a few minutes according to the requirements of the manual, which meets the wishes of users.
This gun can be changed into four shapes. For example, changing the front handrails of two shoulder guns into front handrails becomes six shapes.
Basic types of riot guns. This model has front and rear grips, and the whole gun is short, which is easy to carry and conceal. The front and rear handles are made of high-strength nylon reinforced plastic injection molding, which is finger-shaped and has a more comfortable grip. Front armguard and rear handle types. Different from the basic model, the front handle is replaced by a hand guard, which is more convenient to carry, and the height of the fire line is greatly reduced, which improves the concealment. The hand guard is also injection molded with nylon reinforced plastic.
Types of front armguard and rear fixed stock. Compared with the front armguard and the rear handle, the latter is a fixed stock rather than a rear handle. This gun is characterized by stable shooting, high aiming accuracy and good stability, especially when firing tear gas.
Front hand guard and rear folding inventory types. Compared with the front armguard and the rear fixed thigh, the latter is a folded thigh rather than a fixed thigh. This kind of gun is characterized in that the stock can be folded when it is equipped with a belt, and it has the characteristics of basic type, front armguard and rear handle type. When it is used, it has the characteristics of opening and fixing the stock with the front armguard.
(3) Reasonable structural design and good reliability. In structural design, 4mm riot gun pays attention to safety requirements. In order to prevent the bolt from going off when it is unreliable, there is a limit groove at the end of the lock clip. When the lock clip does not rise in place, even if the needle is hit, the needle is blocked by the limit groove at the end of the lock clip, and the primer of the bullet cannot be fired, thus playing a role of insurance.
In order to ensure that the locking clamp iron is locked in place before firing, the gun is also equipped with a non-locking safety to ensure that the traveling body parts can be fired only after they are in place, while the traveling body parts are in place behind the locking clamp iron and the bolt is in place in front of the locking clamp iron. The constraint relation of this structure ensures that the bolt is in place first, then the clamp iron is locked in place, and finally the driving body is in place, and the movement of the driving body and the walking body assembly is synchronous, so this constraint relation ensures that the hammer can be hammered. In order to prevent the trigger from accidentally touching and firing when not shooting, the gun is also equipped with a trigger safety, which can be realized by pressing left and right when using, which is very convenient. Due to effective structural measures, the formula of 97 is 18. 4 mm riot gun is safe and reliable to use.
Adopt advanced processing technology to ensure the reliable performance of products, and at the same time strive to reduce the manufacturing cost of products. Therefore, some chip-free or chip-less processing techniques, such as spinning, die casting, precision casting, stamping, etc., are adopted, and a large number of injection molded parts are also used. Among 78 parts, as many as 29 parts are processed by the above method, which not only saves materials, but also reduces costs and improves efficiency.
The caliber of the main element is 18. 4 mm gun length 660 mm gun tube length 425 mm gun weight 2. 65kg firing mode, manual ammunition supply, single magazine capacity of 5, ammunition type 18 for distribution. 4 mm tear gas 18. 4 mm dye bullet 18. 4mm riot kinetic energy bomb 18. 4mm riot kinetic shotgun 18. 4mm anti-personnel bomb (if necessary) 40mm tear rifle Grenade failure rate < 5 ‰ life >; 3,000 rounds
Concluding remarks
Type 97 18. The 4mm riot gun passed the technical appraisal organized by the Ministry of Public Security in May 1997 and obtained the national patent. For more than a year, it has been tried out in the police forces of 10 provinces and municipalities directly under the central government, and it has been well received by users because of its simple structure, reliable performance, convenient use, easy maintenance, various types of missiles and high initial hit rate.
Type 97 18. 4mm riot gun is a new member of police riot weapon in China. The gun has reliable performance, and its processing quality ranks at the leading level in China. It has been exported to many countries in the world and has a place in the international market.