PKP

The PKP "Pecheneg" (Russian: Печенег) is a Russian General-purpose machine gun chambered for the 7.62×54mmR round. It is a modernized PK machine gun. The Pecheneg is said to be more accurate than all its predecessors due to a heavier, non-removable, forced-air-cooling barrel with radial cooling ribs and a handle which eliminates the haze effect from hot gases and keeps the barrel cooler, making the weapon more reliable. Furthermore, the weapon is capable of having a telescopic sight or other sights mounted on it, increasing its accuracy and effective range. The GRAU index of the Pecheneg is 6P41 or 6P41N (Pecheneg-N) when fitted with a mounting rail for a night vision sight. The Pecheneg is currently in use by Russian Army Spetsnaz and other troops in significant numbers. The Pecheneg MMG can be considered as a modification of the PKM machine gun, but it is built for only one tactical role; that is, as a true General-purpose machine gun for mechanized infantry and Spetsnaz troops. Its key difference from the parent design is the barrel, which is not a "quick-change" barrel, meaning that it is not intended to be replaced in the field, although it can be removed for inspection and maintenance. The barrel is somewhat heavier than that of the PKM, and has radial cooling ribs. This is enclosed in a steel jacket, which runs up to the muzzle to provide forced air cooling, similar to the distinctive Lewis machine gun designed during the World War I era. Cooling air enters the jacket through oval windows at the rear of the jacket, and exits at the muzzle, propelled by the pressure differential created by the high-velocity gun gases escaping from the muzzle. Whereas early versions of the Pecheneg had a standard PKM-type flash suppressor, resulting in significant muzzle blast once the gun had warmed up, current production version guns have a special flash suppressor that eliminates the issue. The rear of the barrel-encasing steel jacket features a permanently attached carrying handle with a characteristic elongated profile, as it is also intended to protect the line of sight from mirages generated by convection of air heated up by the barrel. The manufacturer claims that the Pecheneg can fire 600 rounds in continuous sustained fire without any danger to the barrel. The practical sustained rate of fire is 250 RPM.