TriRail Mount Systems A mount system that has three rails. Each rail can hold a light, laser or scope, allowing you to dress up your weapon for any situation. The rails have Weaver style cuts so your attached laser, light or scope can be position to the front or back of the mount. This rail system will allow you to mount virtually any combination of accessories on any weapon. Easy to install with no gunsmithing and carries a lifetime warranty from Clearview investments. TriRail UltraMount A complete mount that attaches on to your existing Weaver style base, allows for a scope and three accessories mounting. Can be connected directly to the carry handle base of your AR-15 system; will fit any Weaver style scope mount.