Vortex Defender™ Cover
Virtually indestructible, this cap will fit snugly on nearly all Vortex Optics®(and others) and features a snap flat spring that will keep your line of sight unobstructed.
50mm Outside diameter: 0-50 | 55-59 mm | 2.2 - 2.3 inches
56mm Outside diameter: 0-56 | 62-66 mm | 2.4 - 2.6 inches
E10 Eye Outside diameter: 41.5-46 mm | 1.6-1.8 inches