The AK-112 is a decent weapon, with mid-ranged bursts of hollow-point rounds being able to slice through even combat armor. The AP rounds aren't effective against anything above metal armor, though. With a range comparable to the Colt Rangemaster, and a very common ammunition type (except in the beginning of Fallout 2), the AK is an excellent compliment to the CZ53 personal minigun and the Avenger minigun.
Each of the Brotherhood of Steel knights in the training room on the first level of the Brotherhood of Steel bunker have one that can be pickpocketed. They also do not become hostile if caught in the act.
One can be found on a corpse on the first level of the Glow.