The FN Herstal P90 is an ultra lightweight and maneuverable BullPup airsoft weapon. This is a bullpup rifle, which means the action of the gun is located behind the trigger. This allows the gun to have a shorter overall length without sacrificing the length of the inner barrel. This P90 has fully licensed FN Herstal Trademarks. It has a built full size rail on the top for mounting a red dot sight or holographic sight. It has mini rails on the sides allowing you to add a laser and flashlight as well. The high capacity magazine holds 350 rounds. Battery and charger are included with this AEG.