Staff Writer (Updated: 5/16/2016):
The AK-107 features an empty weight of 8.38lbs with a running length of 37.1 inches and a barrel measuring in at 16.3 inches. As the weapon features a folding hinged solid shoulder stock, it can be compacted to a more manageable length of 27.6 inches. The base cartridge is the Soviet standard 5.45x39mm cartridge that debuted in 1974 for the new AK-74 series assault rifle. Feeding is via a 30-round spring-loaded curved detachable box magazine as well as the 60-round "casket" magazines available to the AK-74 series. The AK-107 is a gas-operated system with a rotating bolt action and offers semi- and full-automatic fire modes as well as a three-round burst selection rate. Rate-of-fire is listed at 850 rounds per minute with a muzzle velocity of 2,953 feet per second while effective range is out to approximately 500 meters. The AK-107 is sighted by way of a rear "Vee" notch and tangent with a front post fixture. Like all other Kalashnikov assault rifles, the AK-107 sports its gas cylinder over the barrel assembly, a slab-sided receiver with the cocking mechanism fitted to the right side of the body. The AK-107 is designed as something of a "modular" weapons system in that can mount a variety of available optics, aiming accessories and the 40mm GP-25 series single-shot, underslung grenade launcher.
The "AK-108" is simply a derivative of the AK-107 series assault rifle, though chambered for the 5.56x45mm NATO cartridge instead of the 5.45x39mm Soviet cartridge. This served to market the assault rifle family line to a wider NATO-minded audience.