Triple stitched seams for durability

it tends to “core” the target because of the single-bevel leading edges of the ferrule

dramatic expansion and explosive fragmentation at a wide range of distances and velocities

The design is manufactured after actually talking to customers and utilizing suggestions

Leaves no scent or residue

Vortex Defender E-10 Flip Cap Eyepiece Vortex Triple stitched seams for durabilityVortex Defender E 10 Flip Cap Eyepiece (40 46 mm) 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. PRODUCT FEATURES: The E 10 fits all Vortex Riflescopes except the 1 inch tube Viper model VPR M 01BDC, VPR M 04BDC, VPR M 03BDC and Viper HS 4 16x44 model VHS 4305 and VHS 4304. Outside diameter: 41.