Scope Tube FastFire� Mounts - These mounts provide tactical operators with options for mounting accessories. - Positions a FastFire secondary optic in nearly any radial position on your primary optic - Allows your primary optic to remain on a higher magnification while quickly switching to a FastFire sight for ultra-fast close quarter target engagement - Complements your high-power primary optic for long-range target acquisition and weapon alignment - 1