The history of small arms goes back centuries, but no sample has reached such world fame as the creation of Mikhail Timofeevich Kalashnikov. This machine became a symbol of reliability, simplicity and efficiency, having received a residence permit in the armies of more than a hundred countries of the world. ConstructionThe archaeological system, developed in the postwar years, was so successful that it continues to be modernized and produced to this day, outliving its creator and entire epochs.
In this article we will discuss in detail basic models, which were produced serially or created as prototypes within the AK family. You will learn about the key differences between generations, the peculiarities of calibres and the reasons why engineers had to make changes to an already perfect mechanism. Understanding evolution machine-gun It allows us to take a deeper look at the engineering thought behind this phenomenon.
From the first wooden boxes to modern polymer butts with adjustable cheeks, the path of weapon development has been long. We'll look at how things have changed. ergonomics and ballistic characteristics to meet the requirements of modern combat. Each modification was a response to the new challenges of the time, whether it was the need for a lighter rifle or the need to shoot a more powerful cartridge.
The Birth of Legend: AK-47 and AKM
The story begins with the adoption in 1949 of the automatic rifle, which received the index. AK-47. The first version had a receiver milled from a single piece of steel, which made the weapon heavy, but incredibly durable. Wooden butt and forearm, as well as the lack of a muzzle compensator were characteristic features of this stage. Massa The unloaded machine was about 4.3 kg, which was considered acceptable for line infantry at the time.
However, mass production required optimization, and in 1959, a modernized version was replaced by a new version. AKM. The main difference was the technology of manufacturing the receiver by stamping, which significantly reduced the weight of the weapon and simplified its production. A muzzle compensator appeared, which improved the accuracy of shooting, and a modified descent mechanism with a self-trip, preventing accidental double shots.
- 🔫 AK-47 (1947–1959): Milled receiver, lack of compensator, classic design.
- 🔨 AKM (since 1959): stamped box, reduced weight, muzzle compensator, improved USM.
- 🎯 ACKSModification with a folding metal butt for airborne troops.
⚠️ Attention: Visually distinguish the milled AK-47 from the stamped AKM can be by the presence of milled cutouts on the side walls of the receiver (to reduce weight) and the shape of the hole for the shompole in the buttock's back.
The upgrade also affected the cartridges: a 7.62×39 mm cartridge was used, which provided a powerful stopping effect. However, yield When shooting queues remained significant, which affected the accuracy of the hit. It was the search for a solution to this problem that led to the next big leap in the development of the family.
Transition to small caliber: AK-74 family
In 1974, the Soviet army adopted a set of weapons under the cartridge 5.45×39 mm. Firstborn became AK-74It resembled the AKM, but had fundamentally different ballistic characteristics. The new cartridge provided a more flatter trajectory of the bullet and a significantly lower recoil, which allowed to increase the speed of the bullet. precision Shooting.
Structurally, the machine received a new muzzle brake-compensator of an open type, which effectively extinguished the toss of the barrel. The shape of the store changed: it became straight with pronounced stiffness ribs, often made of orange or black plastic. The butt and forearm were made of plastic, which increased the resistance of the weapon to atmospheric influences.
Why is the 5.45mm caliber called poisoned?
In the Western press during the Cold War, the 5.45mm bullet was often called “poisonous” or “toxic.” This was due to the presence of an air cavity in the nose of the bullet, which, when hitting soft tissues, caused them to rupture and serious injuries, despite the small caliber. In fact, the bullet contained no toxic substances, and the effect was explained by pure physics and hydrodynamic impact.
Family AK-74 It also included a shortened version. AKS-74U ("Short"). This machine was created for special forces, drivers and crews of equipment. Reducing the length of the barrel required the installation of a flame arrester of a different design and led to a decrease in the initial speed of the bullet, but made the weapon ideal for operation in the field of fire. urban and premises.
Night modifications and special versions
The development of night fighting tactics required the creation of specialized modifications. In the 1980s, machines with the index "H" appeared, for example, AK-74N and AKMN. On the left side of the receiver, they had a bar for fastening night sights. This allowed to conduct effective shooting in low light conditions without loss of mobility Gunman.
The designs developed for special purpose units stand out. For example, AKS-74U He was often equipped with a silencer and a silent shooting device. There were also experimental models, such as ACB (Kalashnikov machine balance), which used a scheme with a movable barrel to compensate for the recoil, but they did not go into mass production due to complexity.
| Model | caliber | Bore length (mm) | Features |
|---|---|---|---|
| AK-74N | 5.45 x 39 mm | 415 | Night sight bar |
| AKS-74U | 5.45 x 39 mm | 206 | Shortened barrel, flame-extinguisher |
| AKMN | 7.62×39 mm | 415 | Night version of the classic caliber |
| AK-74M | 5.45 x 39 mm | 415 | Universal bar, folding butt |
It is important to note that the presence of the bar on the night versions required the use of special sights, such as: NSPU or NSPUM. This equipment greatly increased the mass of the weapon, but gave a critical advantage in combat. Efficiency These systems have been tested in numerous local conflicts.
Universalization: The Age of the AK-74M and the Hundredth Series
The collapse of the Soviet Union and changing economic conditions led to the emergence of a new milestone – the automatic machine. AK-74M. The letter "M" meant modernized. The main visual difference was a folding left butt of impact-resistant plastic, inside which there was a pencil case for accessories. This made the weapon more compact when transported.
In addition, on the lid of the receiver there was a universal bar for mounting optics, which was previously unavailable for mass models. Tsevier and pistol handle also became plastic, black. Resource The trunk was increased thanks to the new chrome, and the overall reliability remained at the highest level.
☑️ Signs of AK-74M
The so-called “hundredth series” was developed in parallel.AK-100), mainly for export. It included models under different calibers: 5.45 mm, 5.56 mm (NATO standard) and 7.62 mm. For example, AK-103 It is actually an AK-74M, but under the good old cartridge 7.62×39 mm. This allowed the partner countries to switch to modern ergonomics standards, while preserving the usual ammunition.
⚠️ Attention: When buying collectible or hunting weapons "hundredth series" pay attention to the marking of caliber. Externally, the AK-103 and AK-74M are almost identical, but they use different cartridges, and their confusion is unacceptable.
Newest Time: AK-12 and AK-300 Platform
In the 2010s, work began on the creation of a new generation machine gun to equip the Russian army. The result was AK-12 (calibre 5.45 mm) and AK-15 (under 7.62 mm). These models received a modular design that allows you to change the length of the barrel and caliber in the field. There was a possibility of installing a telescopic butt with length adjustment.
One of the key features was the integrated plank. picatinnyIt runs along the entire top of the receiver. This allowed to mount any modern sighting systems, including collimators and thermal imagers, without the use of additional adapters. The shape of the forearm has also changed, which has become more convenient for various grips.
And we also have to mention the civilian version. Saiga and sport modifications that are used by many units of combat machines. However, it is precisely AK-12 It became a symbol of the modern stage of development of the famous brand, absorbing all the best features of previous models and the requirements of the digital era.
Comparative analysis and technical nuances
Considering all models of the Kalashnikov assault rifle, one cannot but notice the general trend towards weight loss and increased ergonomics. If the first samples were "workhorses" with minimal comfort, then modern versions allow the shooter to customize the weapon for himself. precision Shooting has grown not so much due to changes in automation, but due to the improvement of the quality of the manufacture of barrels and cartridges.
However, the principle of operation of the gas piston engine with a long stroke of the piston remained unchanged. It is this conservatism that provides the legendary reliability. The mechanism continues to work even when hit by sand, dirt or water, which is confirmed by decades of operation in the most severe of the most difficult conditions. climate.
The main evolutionary branch of AK went the way of maintaining the reliability of automation while improving ergonomics and the installation of attachments.
For those who are interested in the more, it is important to understand the differences in the rate of shooting. In different versions, it could range from 600 to 700 shots per minute. Modern muzzle devices also play a role in fire control, extinguishing not only the toss, but also reducing muzzle flash, which is important for the fire control. night-shooting.
The myth of the eternal trunk
There is an opinion that the barrels of AK do not wear out. It's not. The resource of the chrome channel of the barrel is about 20-30 thousand shots, after which the accuracy drops. However, this is much higher than in many Western analogues, where the resource can be 10-15 thousand.
Frequently Asked Questions (FAQ)
What is the difference between the AK-47 and the AKM?
The main difference lies in the technology of production of the receiver: the AK-47 it is milled (heavier, stronger), and the AKM – stamped (lighter, more technological). Also, the AKM appeared muzzle compensator and a modified trigger mechanism.
Why is the AK-74 more effective than the AKM?
The AK-74 uses a smaller caliber cartridge (5.45 mm vs. 7.62 mm), which provides a lower recoil, a more flattened trajectory of the bullet and the ability to take more ammunition for the same weight.
Can I install optics on older AK models?
On the classic AK and AKM - no, unless you use special mounts-replacement covers receiver. On models with the index "H" and all modern (AK-74M, AK-12) provided standard bars for the installation of sights.
What does the letter "U" mean in the name AKS-74U?
The letter "Y" means "Short". This is a compact version of the machine with a short barrel, designed for special forces, crews of equipment and law enforcement forces.