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