Leupold 59045 Alumina 40mm Objective Lens Cover Matte Black

The Leupold 59045 Alumina Scope Cover provides military-grade protection for 40mm objective lenses while maintaining the precision optical clarity that defines Leupold optics. This screw-on aluminum cover eliminates lens damage from debris, moisture, and impact during transport and storage.

What Makes This Different

Unlike rubber flip-up covers that can fail in extreme conditions, the Alumina series features CNC-machined aluminum construction with precise threading that matches Leupold's exacting tolerances. The matte black Type III hard anodized finish resists corrosion and eliminates glare, while the solid aluminum construction provides impact protection that flexible covers cannot match. Each cover undergoes the same quality control standards as Leupold's premium riflescopes.

Key Features

• CNC-machined aluminum construction for maximum impact resistance
• 40mm objective lens diameter compatibility with precise screw-on threading
• Type III hard anodized matte black finish prevents corrosion and glare
• Sealed design blocks moisture, dust, and debris from optical surfaces
• Compatible with Leupold VX-3i, VX-5HD, and Mark 5HD riflescopes with 40mm objectives
• Lightweight design adds minimal weight to rifle setup
• Quick removal system for rapid deployment in the field

Field performance demonstrates the cover's ability to maintain lens integrity through harsh environmental conditions including rain, snow, and sandy environments. Law enforcement and military units rely on Alumina covers during vehicle transport and extended missions where scope protection is critical. The threaded design provides a secure seal that won't accidentally pop open during movement or recoil, unlike spring-loaded alternatives.

Technical Specs

• Objective lens diameter: 40mm
• Material: 6061-T6 aluminum alloy
• Finish: Type III hard anodized matte black
• Thread pitch: Standard Leupold objective threading
• Weight: Approximately 1.2 ounces
• Compatibility: Leupold riflescopes with 40mm objective lenses
• Country of origin: United States
• Warranty: Leupold Golden Ring Full Lifetime Warranty

Professional shooters and hunters who invest in quality optics understand that lens protection directly impacts long-term performance and resale value. The 59045 Alumina cover represents the same engineering excellence found in Leupold's riflescopes, ensuring optical investment protection for decades of reliable service.