The SBP500 is one of the most powerful submachine guns in TimeSplitters Future Perfect. As is implied by its name, it is similar to the SBP90 Machinegun from TimeSplitters 2, which was based off of the real-life Fabrique Nationale P90. While some elements of the P90 can be still seen in the SBP500, overall the weapon is far more futuristic in design.