Submachine gun AEK-919K “Chestnut”

The end of the 20th century, namely its last decade, was marked in the Russian Federation by a renewed interest in the seemingly forgotten type of small automatic weapons – submachine guns. At that time, interest in PP was manifested both from law enforcement agencies and from special army units. The latter regarded submachine guns as a variant of auxiliary weapons. Since the first half of the 90s of the last century, the design offices of Tula, Kovrov and Izhevsk were actively engaged in the creation of new types of submachine guns. Within a few years, the Ministry of Internal Affairs and the army could choose from no less than 7 samples of various software designed for the cartridge of a 9–18 PM pistol.

Among the samples presented were created in the early 1970s on the topic “Golden eagle” Tula submachine gun “Cypress” from the leading designer TsKIBSOO N. Afanasyev, and Izhevsk submachine gun “Cedar” (designs by Evgeny Dragunov). Among the newly created samples of submachine guns was presented AEK-919K “Chestnut” the development of the Kovrov Mechanical Plant (KMZ). Work on this PP was initiated by the specialists of the plant SKB with the coordination of the performance characteristics of the model, by the Ministry of Internal Affairs. The responsible contractor for the project of the new submachine gun was the lead designer Pavel Sedov, who worked under the supervision of the SKB chief Stanislav Koksharov and with the scientific support of Professor Mikhail Tarasov. Created by KMZ PP AEK-919K “Chestnut” units of the Ministry of Internal Affairs, FSB, the Ministry of Justice and the Federal Security Service were supplied.

AEK-919K “Chestnut”, Created in the mid-1990s by specialists from the Kovrov Mechanical Plant, it was developed with an eye on foreign analogues. The basis was taken by the Austrian submachine gun Steyr MPi-69. But after the release of a small pilot batch AEK-919 a number of flaws were discovered, and the design of the PP was redone. Changes to the design led to the emergence of a new model that received an index AEK 919K “Chestnut”. Kovrovtsy new submachine gun was positioned as a weapon of law enforcement, special forces, as well as certain categories of servicemen of the Russian army (crews of combat vehicles and aircraft).

TTX submachine gun AEK-919 Chestnut

Caliber 9 mm
Cartridge 9–18 mm PM
Mass without cartridges 1.78 kg
Length with folded butt 325 mm
Length with spread out butt 485 mm
Barrel length 167 mm
Initial bullet speed 315 m / s
Combat rate of fire 40-100 i / m
Rate of fire 900 in / m
Store capacity 20.30 rounds
Sighting range 100 meters

Submachine gun case AEK 919K It was a fire control grip with a short forearm and trigger guard. It was made of high-strength, glass-reinforced plastic. Food PP ammunition was made using two types of shops – 20 and 30 rounds, which were located in the handle of the weapon. Laying cartridges in chess shops, with their two-row output. The magazine is fixed in the handle with a special latch in the form of a button. The reloading handle is left-handed, while firing it remains motionless in the forward position.

Receiver PP AEK 919K stamped, in the front part there are two fields of notches that play the role of the forearm. On the cover of the receiver has a rear sight and front sight. Translator-fuse flag type, three-position. It is located on the left side of the receiver. Receiver store is in the pistol grip. The submachine gun is equipped with a retractable butt, equipped with a rotatable butt pad. For a comfortable attachment to the shoulder, after the extension, the shoulder rest rotates 180 degrees. In the stowed position the butt is easily retracted into the receiver.

Automatic submachine gun “Chestnut” based on the recoil energy of the free gate. To reduce the dimensions of the submachine gun in its design, a bolt of type incident on the barrel was used (approximately 1/3 of the bolt in its extreme position is located above the barrel). The reloading handle is located on the left side of the receiver, it is not rigidly connected with the shutter. During firing she is in the extreme front position. The barrel with made polygonal rifling is mounted in the receiver with a removable coupling, which allows you to quickly replace the barrel.

Trigger mechanism PP AEK 919K “Chestnut” allows the shooter to fire both single shots and bursts. In order to change the mode of firing it is enough to use the flag translator located on the left side of the weapon above the trigger guard. This same translator of fire is a fuse. It is very easy for them to control the thumb located on the right hand. Turning the flag translator counterclockwise to the extreme position corresponds to the installation of a submachine gun on the fuse. For firing single shots, the flag must be turned all the way in the opposite direction. Firing bursts is possible when the flag is set to an intermediate position.

Submachine gun “Chestnut” equipped with sighting devices, in the role of which serves flip-pillar and adjustable front sight in a protective case. The extreme positions of the throw-over pillar correspond to firing distances of 50 and 100 meters. It is also possible to install on the weapon a laser pointer and a collimator sight.

In addition, in the kit PP “Chestnut” included quick-detachable muzzle nozzles, which is designed for low-noise flameless shooting. At the same time, the barrel of a submachine gun can be quite easily separated from the weapon, which, together with the polygonal cutting of the barrel bore, greatly facilitates the care of the weapon. As one of the drawbacks, it is sometimes called a small length of the shoulder rest, but when using AEK-919K “Chestnut”, equipped with a collimator sight, it is not so noticeable.

Unlike many other models of small arms, “Chestnut” managed to gain experience in real combat use. For the first time it was used in 1995 by special forces of the FSB of Russia, which received a batch of 100 such submachine guns. FSB officers used them during the first Chechen campaign. In the early 2000s, machine guns “Chestnut” The crews of attack helicopters Ka-50 “Black Shark”, which were used in the combat zone on the territory of Chechnya and Dagestan, were armed.

Established aiming devices consist of a front sight and reversible rear sight for two distances of 50 and 100 meters, in addition, the last versions of Chestnut can be equipped with removable collimator sights (“red dot”) and laser pointer. Butt AEK-919K retractable, made of metal, but the back plate can be rotated 180 degrees down for a more comfortable application. Carrying weapons by using a belt-loop, which is attached to the sabkin back of the receiver.


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