Leupold 52350 Alumina Lens Cover 50mm Objective Black Aluminum

The Leupold 52350 Pro Gear Alumina lens cover delivers military-grade protection for 50mm objective lenses in demanding field conditions. This precision-engineered aluminum cover shields valuable optics from debris, moisture, and impact damage that can compromise accuracy when it matters most.

What Makes This Different

Unlike rubber or plastic alternatives that crack in extreme temperatures, this hard-anodized aluminum construction maintains structural integrity from -40°F to 160°F. The Alumina coating process creates a surface hardness rating of 9H, matching sapphire crystal durability. Quick-detach spring tension allows one-handed operation while maintaining secure retention during transport and storage.

Key Features

• Hard-anodized aluminum construction with Alumina coating for maximum scratch resistance
• 50mm objective lens compatibility with 2.50-inch threaded extension
• Spring-loaded flip-up design enables rapid target acquisition
• Matte black finish eliminates glare and reflection
• Precision threading prevents cross-threading and binding
• Waterproof seal protects against moisture infiltration
• Compatible with Leupold VX-series and Mark scopes

Field testing demonstrates reliable function through thousands of open-close cycles without spring fatigue or binding. The cover maintains positive retention during recoil from magnum cartridges while allowing instant deployment when targets appear. Professional hunters rely on this protection during extended backcountry hunts where equipment failure isn't an option. Law enforcement and military units specify Leupold covers for duty weapons requiring immediate readiness.

Technical Specs

• Objective diameter: 50mm
• Overall length: 2.50 inches
• Material: Hard-anodized aluminum with Alumina coating
• Finish: Matte black
• Weight: 1.2 ounces
• Thread pitch: Standard metric threading
• Temperature range: -40°F to 160°F
• Country of origin: USA

This lens cover represents the intersection of materials science and practical field requirements. Quality optics demand quality protection, and compromising on lens covers risks compromising the entire optical system when conditions turn harsh.