Vortex Optics O-24 Defender® Flip Cap Objective 24
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.
Outside diameter: 28.25-31.25 mm | 1.1-1.2 inches