Vortex Defender Flip Cap Objective Lens The Vortex Defender Flip Cap Objective Lens 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. Model 24: Outside diameter: 28.25-31.25 mm | 1.1-1.2 inches Model 32: Outside diameter: 38-41 mm | 1.5-1.6 inches Model 40: Outside diameter: 45.5-48.5 mm | 1.8-1.9 inches Model 44: Outside diameter: 49-53 mm | 1.9-2.1 inches Model 50: Outside diameter: 55-59 mm | 2.2-2.3 inches Model 56: Outside diameter: 0-56 | 62-66 mm | 2.44 – 2.59 inches Click here to see all our Vortex products
