Built to exceed every shooter's expectations, the FN TPS comes with standard features other manufacturers consider optional. The FN Tactical Police Shotgun is a great crossover tool for those already trained in or accustomed to the M16 rifle family. This shotgun has the advantages of a FN Internal Tactical Choke (ITC), M1913 rail and adjustable stock that will adjust to fit most shooters, with or without body armor. The rail system is drilled and tapped to accept an optional C-MoreĀ® Sight. Also available with screw in choke tubes (improved cylinder and modified choke tubes supplied).