Based on the P90 and built around FNH USA's revolutionary 5.7 by 28-mm ammunition, the PS90 TR provides a compact, lightweight and completely ambidextrous firearm capable of fulfilling numerous security, personal defense, competition and recreational shooting roles. The 10- or 30-round box magazine runs horizontally along the top of the PS90 TR. Fired cases are ejected downwards where they cannot interfere with the user. The extended 16.04-inch barrel and closed bolt operation give the PS90 oustanding accuracy while the integral muzzle brake helps reduce recoil. With three M1913 rails standard, the PS90 TR is readiily adaptable to any operational requirements by mounting a full package of user-supplied accessories including electronic or optical sights, tactical illumination tools and laser target designators. The PS90 TR is available with eighte ra black or olive drab polymer stock.