12.7 Mm Assault Rifle - By the end of the 1960s, the DShKM failed to meet the tactical requirements: the total weight of the machine gun (excluding brackets and ammunition) was 33.5 kg, and 148 kg on a tripod with a belt of 50 rounds. He, while the length on a tripod was equal to 2,600 mm. A lightweight heavy machine gun chambered for the 12.7 x 108 mm cartridge was developed in 1969, intended to replace the DShKM.
The project is in charge of the TsKlB SOO designer team. Including J. 3. Nikitin, Yu. M. Sokolov and V. I. Volkov. Their machine gun NSV-12.7 (Nikitin-Sokolov-Volkov, 12.7 mm, index 6P11) entered the list in 1974.
12.7 Mm Assault Rifle
Machine guns are gas-operated. The cylinder is installed under the barrel and is equipped with a gas regulator with two side holes of different diameters for the circulation of powder gases between the cylinder and the groove of the gas piston.
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The machine gun was fitted with a quick-change barrel, connected to the receiver by a wedge latch. The barrel must be cooled or replaced after shooting at 100 feet without removing the machine gun from the tripod or stand. There is a handle on the barrel or machine gun for easy barrel replacement.
Locking is done by a 3-section horizontal breech block. The top left sub-block also works with rifling. When the breech stop is aligned with the stirrup of the breech stop assembly, it folds to the left, with its upper and lower locking lugs engaging the shoulders of the receiver. The breech block assembly is the key component with the threaded gas piston. The center receiver has three rollers that move on rails - the rollers make the operation of the machine gun smoother and more reliable. The main spring is housed in the breech block assembly channel. The rear of the recoil mechanism is mounted on a buffer spring, which reduces the impact of the recoil breech block assembly. The right-mounted firing handle remains fixed during firing.
Machine guns were fired from the rear. The trigger assembly is housed in a separate housing on the upper rear of the receiver. The trigger assembly only provides automatic fire. It is operated by a pawl, which in turn is connected to the machine gun's electric or mechanical trigger. Manual protection blocks patrolling.
The ammunition supply comes from metal gutter straps made in manageable 10-round lengths (attached to the cartridge). The feeding direction can be left or right. The conveyor belt is formed by a feed slide driven by special lugs of the breech block carriage assembly.
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When the breech block assembly is retracted, the cartridge is ejected from the case chamber, and as the breech carrier approaches the case ejector, the round travels to the right along the face of the breech block and is held inside the breech block by the gripper. When the breech closes again, the breech claws push the spent case into the firing slot of the receiver, and the next spent case is ejected through the case. In fact, the Scrap Oasis can be moved forward, and the Powell-operated trigger assembly allows the NSV machine gun to be mounted on a variety of mounts, including tank and fort mounts.
It is worth noting that a universal stand is provided, the machine gun 6T7 is equipped with a standard folding ground tripod, L.V. Stepanov and K.A. designed by Baryshev, which cannot be used for anti-aircraft fire, has special features. Limited Traverse and 6U6 All-Round Traverse antiaircraft mounts, manufactured under the supervision of R. Or. Porin It makes the weapon system more flexible and dynamic. The availability of multiple mounts that do not require any modifications to the machine gun provides a choice based on the task at hand.
When mounted on a tripod, the machine gun was designated NSV-S-12.7. The machine gun is attached to a 6T7 tripod mount, which also mounts a spring-loaded skeleton stock, a pistol grip, trigger assembly, charging mechanism and sights on the strut. Therefore, all fire controls are mounted on tripods rather than machine guns. The buttstock and pistol grip made handling the machine gun easier, while most of the recoil was absorbed by the ground via a slightly movable tripod. The shoulder rest allows the gunner to aim and fire without jumping into a tripod. When the trigger is pulled, the trigger assembly of the machine gun is depressed. The firing mechanism is of the cable type: the gunner pulls the cable handle, and the cable rotates the drum with the star gear, which drives the rod. The rod-action machine gun is attached to the charging handle. The transverse angle of the gun rack is 10-25°, and the elevation angle is -8° to +10°. The front legs have an extra fold speed for better stability on soft ground and a shock spring for shooting on hard ground.
In marching configuration, the folded tripod is carried by two crew members. In combat, combatants could mount the machine gun on a tripod using the handle on the barrel and the butt of the tripod. It is worth noting that the ratio of machine gun weight to tripod weight changed from 3.65 for DShKM to 0.64 for NSV-S-12.7.
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The 6T7 design allows it to fit directly into the pillbox launch port of the 6U10 and 6U11, and quickly remove for use with external pillboxes. The 6U10 and 6U11 mounts were developed by L. V. Stepanov and entered service in 1976.
The SPP (1OР50) optical sight, mounted on the rear of the receiver, is the main sight of the machine gun. The gunner also has access to an open iron sight consisting of a folding tangential leaf rear weight with windage knob, case mounted trigger assembly and muzzle mounted nose.
NSV machine guns are also used as anti-aircraft weapons on fighter jets. Tula-based TsKlB SOO designers including E. M. Kondaurov, V. E. Sokolov, I. M. Ustmkm and A. A. Lavrichenko developed the TKB-095 Ytyos-M armored bridge. In 1976, the Bridge Landing Air Cushion (LCAC) entered service, featuring surface effect boats and dinghies. The NSV-12.7 is also part of the Gorchak weapon system on Missing Mountain, which is designed for use in fortified areas, barricades, border areas and key installations.
Among the existing heavy machine guns, NSV-12.7 has the characteristics of relatively light weight and good maneuverability. The design and mounting of the machine gun ensures accurate aiming and high-precision shooting, while firing the machine gun from a fixed position on a tripod provides easy aiming and concealment. The NSV-12.7 actually became the first mass-produced machine gun in a new generation of light and heavy machine guns.
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The machine gun went into production at the Metalist plant in Uralsk, Kazakhstan, while the ground tripod for the NSV-S-12.7 was manufactured at the Molot machine-building plant in Vyatskie Polyany.
The tank type is designated NSVT index 6P17. The NSVT machine gun is mounted on a cradle ensuring an elevation angle of -5 to +75° to engage ground and air targets. The K10-T collimator sight is used to shoot air targets, while the iron sight is used to engage ground targets.
Poland, Bulgaria and India have received approval to manufacture NSVTs as part of the T-72 main battle tank armament. The M93 Black Arrow (Serbian: М93 Црна стрела/M93 Crna strela) is 12.7×. The 108mm Anti-Material Rifle is designed and manufactured by Zastava Arms.
The rifle was designed in 1993 and manufactured in 1998. The rifle's primary use is long-range, so it comes with an optical sight included in the rifle kit (8x magnification, graduated to 1,800m) and a spare iron sight. .Its brackets can also accept brackets from other manufacturers.
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The Zastava M93 Black Arrow rifle is available in 12.7×108mm and .50 BMG. It is a bolt-action, air-cooled, magazine-fed firearm with a fixed stock.
The weapon is fed from a 5- or 10-round detachable spring magazine. The shoulder rest is telescoping and sits behind the ergonomic pistol grip unit. The bolt action handle is located on the right side of the frame. A carrying handle is attached to the ford, and the barrel is covered with a multi-baffle brake to help deal with heavy recoil. Also comes with a folding bipod.
However, the FR-F1 was based on the MAS-36, which was also inspired by the Mauser 98. So the M93 and FR-F1 have some roots in the Mauser 98. The M93 has a trigger block safety design similar to the Russian SVT 40 rifle
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