Otis Technology Otis TRS-RR-2 Rail Riser for Otis TRS Free-floating Rail

With the rising popularity of piston operated ARs, Otis has developed the Otis Rail Riser to work in conjunction with the Otis TRS® free-floating rail. Unlike standard hand guards, the TRS/riser combo gives you a rock-solid mount and broader ability to customize your weapon with a laser, scope, illuminator or other accessories. Patent pending.