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"Kord" (Kovrov Armorers of Degtyarev plant) is a Russian high-caliber machine gun, chambered for 12.7x108mm round, developed by the Degtyarev plant in 1992.
Designed for destruction of lightly armored targets and weapons, and eliminating enemy personnel at ranges of up to 1500-2000 meters, and also for engaging aerial targets at slant ranges up to 1500 meters.
"Kord" was created in the 1990s as a replacement for the NSV ("Utes"), the production of which, after the collapse of the Soviet Union, was partially outside the Russian Federation. The machine gun is developed at the Kovrov Degtyarev Plant (ZID).
The KORD is currently in production; the machine gun has been officially adopted for use in the Russian Army. In addition to the infantry version, it is set in the anti-aircraft gun on the turret of the Russian T-90S MBT.
12.7 mm machine gun "Kord" is an automatic weapon with belt feed (feed belt can be both left and right). The machine gun is based on the vapor automation. Barrel locks by turning the bolt. The trigger mechanism can be controlled manually (from the trigger installed on the machine gun), and from the electric trigger (for tank variants). The machine gun has a fuse from accidental shots. The iron adjustable sight is primarily used. It is possible to mount optical and night sights. The quick-change barrel is air-cooled, built on the ZID's own technology, that provides equal heating when shooting, and therefore - and equal thermal expansion (deformation) of the barrel. Due to this, accuracy in comparison with the NSV increased by 1.5-2 times when shooting from the tripod (when shooting from bipod, accuracy is comparable). As a result, when shooting at a distance of 100 m circular deviation is only 220 mm. The original idea of equal heating of the barrel and the corresponding patent belongs to Aleksandr Yakovlevich Kurzenkov, senior engineer of the Kovrov Degtyarev plant (ZID).
The basic ammunition claimed by ZID - B-32 and BZT-44. At the same time, obviously, that the machine gun can use any gun ammo of the 12.7mm standard, including MDZ and BS (BS-41). The latter has a bullet with a tungsten core, which significantly improves the armor penetration abilities. If the B-32 bullet pierces the 20 mm steel plate from a distance of 100 m, the BS and BS-41 bullets do the same from a distance of 750 meters.
- 6P49 - tank variant.
- 6P50 - infantry machine gun.
- 6P51 - tank variant with the left-side feed.
- 6P57 - the 6P50 variant with the 6T19 bipod.
- 6P58 - the 6P50 variant on the 6U16 pivot.
- 6P59 - the 6P50 variant on the 6U16 pivot and SP rack.
- 6P60 - 6P5the 6P50 variant on the 6T60 tripod.
The Kord machine gun is the world's first serial high-caliber machine gun, which can be fired from a bipod, and if necessary, even without it. At the moment it is one of the lightest full-fledged machine guns of 12.7 mm - Browning M2 Heavy Barrel has a weight of 58 kg (on a tripod), and even the body of the machine gun weighs 38 kg (more than 20% heavier than the "Kord" on a tripod), and only Browning M2 Lightweight, featuring a lightweight quick-changeable stellite barrel with a flash suppressor, has a weight of 27 kg, while it can be used anywhere using the original M2. The XM312 machine gun, being lighter, than Kord, can not be considered as a full-fledged machine gun, because of it's extremely low rate of fire - 260 rpm.