Heavy-Duty Protection Meets Fast, Functional Access
Keep your precision optics safe with the Tenebraex Tactical Flip-Up Ocular Scope Cover made specifically for the ZCO ZC420 4-20×50, ZC527 5-27×56 & ZC840 8-40×56 riflescope. Built from durable tactical-grade materials, this cover protects the eyepiece (ocular end) of your scope from dirt, grit, moisture and accidental impact — all without interfering with rapid deployment when you’re ready to shoot.

The spring-tensioned flip-up mechanism allows for fast, one-handed operation so you can instantly swing the cover out of the way and engage your target without fumbling with removable caps. Trusted by professionals and serious shooters, this Tenebraex cover delivers field-tested durability and reliable performance round after round.

Key Features & Benefits:
✅ Custom Fit for ZCO ZC420 4-20×50, ZC527 5-27×56 & ZC840 8-40×56 Ocular – Perfectly tailored for the eyepiece of this riflescope model. 
✅ Spring-Tensioned Flip Mechanism – Easy one-hand operation with secure closure. 
✅ Rugged Tactical Construction – Designed to withstand harsh conditions encountered in hunting, competition or tactical use. 
✅ OEM-Grade Fit & Finish – Precision-built to maintain optical performance and protection. 
✅ Quick Deployment – Flip-up design stays out of the way when deployed yet stays securely closed when not in use.

Protecting your scope’s eyepiece helps preserve the clarity, performance and longevity of your investment. Whether you’re on the range or in the field, the Tenebraex flip-up cover gives you confidence and peace of mind knowing your optic is shielded from everyday hazards.