VORTEX Defender 40-46mm Eyepiece Flip Cap And Defender 62-66mm Objective Lens 56 Flip Cap (E-10+O-56)

This is the last flip cap you will ever need! Virtually indestructible, this cap will fit snugly on nearly all Vortex Optics and features a snap flat spring that will keep your line of sight unobstructed.

The E-10 fits all Vortex Riflescopes except the 1-inch tube Viper model VPR-M-01BDC, VPR-M-04BDC and VPR-M-03BDC. Outside diameter: 41.5-46 mm | 1.6-1.8 inches

O-56 Outside diameter: 62-66 mm | 2.4 - 2.6 inches