The Optum Ring System (ORS) is the backbone of the Optum system and enables quick and easy configuration of the scope. Keep an ORS ready for 3d, field, and indoor with different fiber sizes and colors and swap between them in seconds. Optum ring system (ORS) for the 29mm, 35mm, and 40mm Optum scope This must be used in conjunction with an Optum scope The 29mm Optum uses a different size ORS than the 35mm and 40mm Optum. The 35mm and 40mm Optum use the same size ORS. The Optum ring system (ORS) makes it possible for shooters to change pin positions, fiber color, or fiber size by swapping between multiple rings in seconds 30/40mm Optum ring system Features: Exterior fiber wrap that captures ambient light for a brighter pin Adjustable fiber cover allows precise control over fiber brightness Two 8-32 holes for installing a light in seconds Eight pin positions Threaded on the target side for optional sunshades and lenses Only 40mm Optum sunshades will thread into the ORS Removable pin in keyway slot for perfect alignment every time Includes: Optum ring body Tubing for fiber (installed) Fiber cover (installed) Pin and fiber (not included with "no pin" option) Blue, orange, and green fiber included Mounting screws (x2) 29mm Optum ring system Features: Exterior fiber wrap with fiber bypass to allow fiber to wrap completely around the ring system for maximum light collection Adjustable fiber cover allows precise control over fiber brightness Two 8-32 holes for installing a light in seconds Eight pin positions Threaded on the target side for optional sunshades and lenses All 29mm Optum sunshades will thread into the ORS Includes: Optum ring body Fiber cover (installed) Pin and fiber (not included with "no pin" option) Blue, orange, and green fiber included Mounting screws (x2) Fiber retaining set screw (installed) Individual pins for the Optum ring system are not available for purchase. Made in the USA
