Shop › O-Ring Image 1 of 1 O-Ring $2.00 Oring is placed between lens and the scope housing to remove any vibration of the lens at the time of the shot. Size: 1.625 1.75" 2.00" 2.125" 2.25" Purchase Added! Oring is placed between lens and the scope housing to remove any vibration of the lens at the time of the shot. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More