The AK-102 assault rifle is a shortened carbine version of the AK-101 rifle, which in turn was derived from the original AK-47 design and its AK-74 successor. The AK-102, AK-104, and AK-105 are very similar in design, the only difference being the caliber and corresponding magazine type. The AK-102 is an export version chambered to fire 5.56×45mm NATO ammunition.
Compared to the AK-101 and AK-103, which are full-size rifles of similar design, the AK-102, 104, and 105 feature shortened barrels that make them a middle ground between a full rifle and the more compact AKS-74U. Whereas the AK-10x rifles have longer barrels, full-length gas pistons, and solid, side-folding polymer stocks, the AKS-74U is shorter, and features a skeleton stock.
The rifle's receiver is made of stamped steel. The magazine is lighter, and more durable than older models, being made out of reinforced fiberglass. The butt stock is made of plastic, making it lighter, more durable, and it is hollow, allowing a field kit to be stored in side of it.
The AK-102 uses an adjustable notched rear tangent iron sight calibrated in 100 m (109 yd) increments from 100 to 500 m (109 to 547 yd). The front sight is a post adjustable for elevation in the field. Horizontal adjustment is done by the factory or armory before issue. The AK-102 has a muzzle booster derived form the AKS-74U.
The 100-series AKs are produced by the Izhmash factories in Izhevsk, Russia.