KGP-9

The KGP-9 is a Hungarian submachine gun used by Hungary's military forces and prison guards. Development started in 1986 when the head of the Hungarian Institute for Military Technology, János Egerszegi, drafted a proposal for a new sub-machine gun in 9mm Parabellum rather than 9x18 Makarov, the latter caliber being disliked by the counter-terrorist units of the Hungarian police. The most promising design was submitted by Fegyver- és Gépgyár and was developed by Zoltán Horváth. Weapon trials began in 1988 but the socioeconomic upheavals of 1989 (fall of the Soviet Union and the Hungarian People's Republic) caused the project to stall for a few years. Unlike the 1988 trials, field trials in 1993 resulted in several failure to feed malfunctions, which FÉG blamed on poor quality ammunition made by MFS. The officers participating in the trial disputed this, stating that the same ammunition feed reliably from UZI sub-machine guns and the IWI Jericho 941 pistol. Testers also disliked the folding stock and safety.
Despite these issues, the project continued with more prototypes being made ready for trials in 1996. These guns had even more issues, with the largest being a tendency to go into...