The AK-63 (also known in Hungarian military service as the AMM) is a Hungarian variant of the AKM assault rifle manufactured by the Fegyver- és Gépgyár (FÉG) state arms plant in Hungary. It is currently used by the Hungarian Ground Forces as its standard infantry weapon, and by most other branches of the Hungarian Defence Forces.
In Hungarian service, the AK-63 replaced the AMD-65, which is nearly identical but features a modified heat shield and a vertical forward hand grip under the barrel. Although the AKM-63 had been the Hungarian service rifle since 1963, it was more expensive to build, and the forward grips had a reputation for being easily damaged in the field. In the late-1970s, the Hungarian Defense Ministry requested that FÉG manufacture a cheaper rifle based on the more traditional Soviet AKM design. By the end of 1977, the AK-63 was adopted by the Hungarian People's Army (beginning with the Ground Forces). In 1978, FÉG added a folding stock AKMS version of the AK-63 to their catalogue; thereafter, the fixed-stock AK-63 became known as the AK-63F (Wooden Stock) and the folding-stock version was designated AK-63D (Descent).
In Hungarian service, the AK-63 F and D are designated as the AMM and AMMSz, respectively.