Makqin finished. He used the principle of short recoil of the barrel to design and test the first automatic machine gun in 1883, which made the theoretical rate of fire of the gun reach 600 rounds per minute, and obtained the patent for the invention of the machine gun in 1884.

The gunpowder gas in one chamber of the gun is used as the power for the movement of the mechanism, and the opening and closing locks and waiting for fire are completed through the crankshaft mechanism, and the ammunition is fed with a cloth cartridge belt, and the water-cooled barrel can shoot continuously for a long time, and the gun body weighs 27.2 kg, and is clamped on a special gun carriage or gun carriage for shooting.

According to the principle of the Maxim machine gun, automatic guns, automatic rifles, submachine guns, light machine guns, etc. came out one after another.

The big family of guns has since entered a new phase. The development trend of modern firearms. The first is the clan of guns.

With the expansion of the scale of warfare and the change of combat methods, the types of weapons and ammunition are increasing day by day, making logistics and supply increasingly complicated.

In many countries, the reform of firearms began with an effort to universalize ammunition. After World War II, the former Soviet Union first solved the problem of generalizing firearms and ammunition for squads.

In December 1953, the North Atlantic Treaty Organization (NATO) also selected a universal standard bomb. In the 60s, the former Soviet Union designed the Kalashnikov class gun family, thus achieving the purpose of not only unifying the structure of different gun types, but also taking into account the special requirements of various guns in the gun family.

Secondly, the caliber is smaller. In 1985, the U.S. military first began to test the AR15, a small-caliber automatic rifle that fired 5.56 mm bullets, and in 1963, it was named the M16 rifle and installed in parallel with the troops, thus beginning the process of small-caliber firearms for squads.

Due to the high muzzle velocity of the warhead of the gun and the fact that it is easy to flip after hitting the target, it has a greater lethal power in the effective firing range.

Following the United States, many countries have developed small-caliber steps. In 1974, the Soviet Union finalized a family of squad guns with a caliber of 5.54 mm.

October 1980, the North Atlantic Treaty Organization (NATO) designated 5. 56 mm is the second standard caliber for firearms.

After the advent of small-caliber rifles, the gun family also had further development. For example, there are three gun families developed by the German company HK, of which the first two caliber are 7.

62 mm, while the third is to use the US 5. HK56 gun family with 193mm M33 cartridges.

All three are independent gun families consisting of assault rifles, short assault rifles, and assault guns. With the progress of military science and technology, modern warfare has put forward higher requirements for the development of firearms.

Now the way to develop new types of firearms is mainly to explore guns and cartridges with new operating principles and new structures.

For example, the G11 shellless bomb and 4, which Germany began to develop in 1969. 7mm caseless shotguns, a major technological breakthrough has already been made; Before the United States developed an advanced warhead that launched an arrow-shaped bomb and a dual-warhead, samples were developed and put into testing.

In terms of the application of new materials, it is mainly the rational use of emotional high-strength alloy materials and fiber-reinforced engineering plastics.

The general trend in the design of firearms is to reduce the size of the pieces and reduce the weight in order to improve mobility; In terms of performance, it can improve the profit density, enhance the lethality or increase the penetration of the warhead, and better ensure the reliability of work and the convenience of use.

the development of rifles suitable for vehicle combat and extremely strong; Improve the ability of large-caliber extremely strong anti-armor where air strikes.

Develop advanced night vision equipment to improve the all-weather combat capability of firearms. Some countries are also exploring non-gunpowder energy sources, such as high-voltage electricity, sound or lasers.

Like the overhead class I've seen before, for example, the protagonist of "Agent: Return to the Qing Dynasty" was still in 184 years, and he made AK, which is really flattering.

。 The invention of all kinds of firearms has its historical background and does not come out of nowhere. Every invention always has to be improved and used by someone. When Thundermercury was first invented, it was thought to be a failed substitute for gunpowder because it reacted too violently. But to use it as a base gunpowder, it is made in heaven. But it will take decades from this discovery to the central primer of the all-metal. At the same time, no matter how great the invention and discovery, it must also have the background of industrial production and the cooperation of other related technologies. Chemical, metallurgical, financial, international situation, etc. If it weren't for the strife in Europe at the end of the 19th century, the development of firearms technology would not have been rapid. If it weren't for the ingenuity of countries around the world, there would not be such a huge demand for arms.