Vortex Defender Flip Cap Objective lens (fits 56mm)
DEFENDER™ FLIP CAP OBJECTIVE 50
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: 0-50 | 55-59 mm | 2.2 - 2.3 inches.