Field ProtectionVortex Accessories
The Last Flip Cap You'll Ever Need.
The Vortex® Defender® Flip Cap is a virtually indestructible lens cover that snaps snugly onto nearly all Vortex® optics, with a snap flat spring that keeps your line of sight completely unobstructed when flipped open.
Official Specifications VerifiedMetric FirstVortex VIP Warranty
Build
Virtually Indestructible
Snap flat spring hinge
Sizing
7 Options
Eyepiece + 6 objective diameters
Fit
Snug, Secure
Fits nearly all Vortex optics
Warranty
Lifetime
Vortex® VIP® Warranty
Product Overview
This is the last flip cap you will ever need. Virtually indestructible, the Defender® Flip Cap fits snugly on nearly all Vortex® optics and features a snap flat spring that keeps your line of sight completely unobstructed once flipped open.
Available in eyepiece and six objective diameters to match your specific riflescope — check your scope's actual outside diameter against the ranges below before ordering, since flip caps are sized to a snug fit rather than a universal one.
Technical Specifications
| Specification |
Defender® Flip Cap |
| Eyepiece (E-10) — Outside Diameter |
41.5–46mm (1.6–1.8in) |
| Objective 24 (O-24) — Outside Diameter |
28.25–31.25mm (1.1–1.2in) |
| Objective 32 (O-32) — Outside Diameter |
38–41mm (1.5–1.6in) |
| Objective 40 (O-40) — Outside Diameter |
45.5–48.5mm (1.8–1.9in) |
| Objective 44 (O-44) — Outside Diameter |
48–53mm (1.89–2.08in) |
| Objective 50 (O-50) — Outside Diameter |
55–59mm (2.2–2.3in) |
| Objective 56 (O-56) — Outside Diameter |
62–66mm (2.4–2.6in) |
| Hinge |
Snap flat spring, keeps line of sight unobstructed when open |
| Manufacturer SKUs |
E-10 (Eyepiece) / O-24 / O-32 / O-40 / O-44 / O-50 / O-56 |
Metric-first presentation. Original Vortex values retained where applicable. Never infer missing specifications.
Noctis Africa Field Verified
Equipment selected, researched and verified for demanding real-world applications.