SVDK is a derivative of SVD, which has some improvements over the original SVD.
The SVDK was one of the results of the research of a project of the Soviet military called VZLOMSHIK, which was also carried out at the same time as 762 mm caliber. 93x64 mm 7N33 armor-piercing warhead for attacking heavily armored enemy forces or hiding in bunkers.
The SVDK is structurally identical to the SVD, except that the magazine and other working parts have been modified to accommodate more powerful shells. A short-stroke air-guided piston was used, the gas regulator was a double air guide valve, and the bolt was fitted with three locking lugs. Its stock is derived from SVDS, but it has a large rubber liner on the bottom of it.
At the same time, the SVDK is also equipped with a mechanical sight, and the standard scope is a 3 10x 1P70 "Giperion" sight. The magazine capacity is 10 rounds, and the handguard is equipped with a foldable bipod in front. Outwardly, the shape of the barrel, flame suppressor, as well as the magazine of the SVDK differs from the SVDS, so it is easy to distinguish.
The SVDK can be used as a lightweight anti-materiel rifle, which has the advantage of being much lighter than a regular anti-materiel rifle, but the disadvantage is that it is more cost-effective, as it is far less powerful than the 12The 7 mm Largemouth *** range is also much closer than the Largemouth ***.
VSS is a low-noise sniper rifle developed by the Soviet Union, also known as Vintorez.
In the late 80s of the 20th century, a research team led by Petro Serdyuko of the Soviet Research Institute of Precision Mechanical Engineering successfully developed the AS assault rifle, which is the abbreviation of Tomat Spetsialnij, that is, "special assault rifle".
The VSS silenced sniper rifle, like the AS submachine gun, was developed by a team headed by Petro Serdyuko. Since its service in the 80s, the VSS has been used by the Russian Special Operations Division for fighting in Chechnya, and the Russian Special Operations Group was also used in the Beslan hostage incident in 2004.
Both the AS assault rifle and the VSS sniper rifle are based on the receiver of a small assault rifle, and the structural principle of both is exactly the same. In appearance, the difference between the two is mainly the difference in the butt and grip. The VSS micro-sound sniper rifle removed a separate small handle and was replaced by a wooden sports carriage with a rubber base on the base. In addition, the magazines of the two can be used in common, but the VSS Micro Sniper comes standard with a 10-round magazine.
Although the AS assault rifle can also fire the SP-6 and PAB-9, it mainly fires the cheaper SP-5 ordinary rounds. The VSS can also fire SP-5 ordinary shells, but mainly SP-6 armor-piercing shells.
The VSK-94 is a miniature sniper rifle developed in Russia with a full caliber of only 393 kg, because of its small size, it couldn't be better for special forces, so the equipment has a good reputation in Russia.
In the early 90s of the 20th century, the Tula Instrument Manufacturing Design Bureau independently developed a new type of close-quarters combat police**, which was designed to be lighter than the AKS-74U assault rifle, with better stopping effect and penetrating ability, and relatively low production and maintenance costs.
In 1994, the successfully designed 9A-91 assault rifle was produced in small batches at the Tula Arsenal and delivered to the Russian Ministry of Internal Affairs for trial in the same year.
Later, the Tula Instrument-Building Design Bureau developed a sniper version of the 9A-91 assault rifle, the VSK-94 microsound sniper rifle. The VSK-94 has a pneumatic operation and a swivel bolt. The pneumatic type of operation is a long-stroke piston drive, while the bolt bolt has 4 lock lugs.
The VSK-94's casing is produced using a low-cost metal stamping method to reduce production costs, metal raw materials and production time, and make it easier to maintain and repair.
The pull handle is on the right side of the receiver, the firing mode selector lever is located on the left side of the receiver, slightly above the trigger guard, and semi-automatic and fully automatic firing can be selected.
The butt of the gun is made of plastic, which can be replaced, and the small grip is a whole, and there is a rubber pad on the bottom bracket to make it more comfortable for the shooter when using it. The tilt-up metal mechanical shutter allows the VSK-94 to attack targets within 200 meters, but a PSO-1 sight capable of 4 times magnification can be mounted on the left side of the receiver to attack targets at a distance of 400 meters.
The VSK-94 fires 9 39 mm rounds and can accurately launch a surprise attack on all targets at a distance of 400 meters. The gun can be installed with a high-efficiency silencer to reduce noise when firing, and it can also completely eliminate the muzzle flame, which can greatly improve the shooter's concealment and the suddenness of the attack.
The VSK-94 is extremely well silenced, and at a distance of 50 meters, its gunfire is almost inaudible.
SVU is one of the derivatives of the SVD sniper rifle, which uses a stockless structure, and the main users are the troops of the Russian Ministry of Internal Affairs.
The SVU sniper rifle was developed in 1991 at the request of the special police team of the Ministry of Internal Affairs of Russia, the main purpose of which was to facilitate fire support in buildings by the special police team.
Strictly speaking, although SVU is a modification of SVD, and 40% of the parts are common, unlike SVDS and SVDK, SVU has nothing to do with Dragunov, so there is no abbreviation of Dragunov's name in its name.
The SVU sniper rifle has a calf-style design, and the overall length of the barrel is shortened to 870 mm. The chamber of the gun is 4 right-handed rifling with a rifling distance of 320 mm. Due to the shortening of the barrel, the illuminator and the front sight were changed to fold so as not to interfere with the operation of the PSO-1 scope.
Although 7The 62 54 mm R bullet was more than sufficient, but in order to suppress recoil and increase firing stability, the muzzle brake of the SVU had a triple baffle design and was able to be integrated with the suppressor.
In order to be suitable for use in close combat, there is also a special silencer on the muzzle. The SVU comes with a detachable bipod and a 10- or 20-round magazine, allowing the shooter to load and unload it according to his needs.