DEFENDER™ FLIP CAP OBJECTIVE
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.
Size 44: Outside diameter: 48-53 mm | 1.89-2.08 inches
Size 50: Outside diameter: 0-50 | 55-59 mm | 2.2 - 2.3 inches
Size 56: Outside diameter: 0-56 | 62-66 mm | 2.4 - 2.6 inches