Shrewd Optum ring system 35 / 40mm no pin rc rest Razor-sharp edges remain exposed even

Razor-sharp edges remain exposed even in the closed position

Material: CNC machined aluminum

10mm 650 4

Accepts a 41mm Lens

No annoying buzzing sound

Shrewd Optum ring system 35 / 40mm no pin rc rest Razor-sharp edges remain exposed evenOPTUM RING SYSTEM (O. R. S.) FOR THE 35MM AND 40MM OPTUM SCOPE THIS MUST BE USED IN CONJUNCTION WITH AN OPTUM SCOPE THE OPTUM RING SYSTEM (O. R. S.) MAKES IT POSSIBLE FOR SHOOTERS TO CHANGE PIN POSITIONS, FIBER COLOR, OR FIBER SIZE BY SWAPPING BETWEEN MULTIPLE RINGS IN SECONDS 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