12.7mm KORDHeavy Machine Gun

Heavy Machine Gun

Mission

The Kord heavy machine gun is designed to kill enemy personnel, light armoured materiel, weapons, and low-altitude air targets. Features

Kord is a derivative of the NSV-12.7 Utyos large-calibre machine gun featuring better accuracy of fire and extended service life. Where its dimensions and combat position size are concerned, it is identical to its predecessor, which enables it to be employed on all mounts, developed earlier for the NSV-12.7 machine gun.

Design

The machine gun is gas-operated. Unlike NSV-12.7, which features wedge chambering with a horizontally sliding breech block, the Kord machine gun boasts chambering by a turning breech block which increased machine gun’s reliability. There are two modifications of the machine gun with feed from the left or right. A striker-type firing mechanism is operated by the breech block carrier. A trigger with the rear sear allows the machine gun to fire only in automatic mode. It can fire single shots if the trigger is pulled for a short period of time, which requires some training. An antiaircraft version of the machine gun, mounted on tanks, is equipped with an electric sear for remote fire control.

A quick-change barrel is manufactured by cold radial forging (reduction), which together with a new efficient muzzle break/flash elim-

inator increased accuracy of automatic fire by about 1.5 times. On the left side of the receiver there is a mount for an optical or an electrooptical sight. A mechanical open type sight is employed as an alternative. Versions

The machine gun can be mounted on the 6T7 light infantry tripod for firing at ground targets, on the 6U6 versatile tripod for firing at both ground and air targets, and on a special mount for firing from pillboxes.

The Kord version (6P49) fitted with an electric sear is mounted on all types of tank AA machine gun mounts.

Basic specifications

Cartridge 12.7x108 Muzzle velocity, m/s 820-860 Effective range of fire, m 2,000 Machine gun weight, kg 25.0 Length, mm 1,577 Cyclic rate of fire, rds/min 650-750