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.
The O-40 cap has 3 stop postitions. The first vertical, direct straight vieuw. Second 45° and third on 90°.
Outside diameter: 45.5-48.5 mm | 1.8-1.9 inches
Weight: 1. oz
The Vortex O-40 defender flip up cap fits most riflescopes with 40mm objective such as the Diamondback 4-12x40
