The PS90 is a semi-automatic version of the famous P90 military-grade firearm produced by Belgian FN Herstal. Unlike selective-fire FN P90, the semi-auto PS90 has been available for commercial and law enforcement since 2005. As a civilian version, a PS90 rifle sports a 16.04″ cold hammer-forged MIL-SPEC barrel, but its bullpup configuration makes it relatively compact with an overall length of 26.23". The PS90 is chambered for the tiny 5.7x28mm cartridge, and though it can accept the standard 50-round P90 magazines, it is shipped with 10 or 30 rounds magazines capacity for civilians. As you probably already know, the unique magazines are mounted parallel to the PS90's barrel, keeping cartridges perpendicular to the barrel and above the action of the carbine. This innovative bullpup carbine features a synthetic thumbhole stock with a molded-in sling attachment point. The PS90 sports a MIL-STD-1913 (Picatinny) rail fitted to the top of the receiver.