The GPO 50mm Riflescope Sunshade (Model: A351) is a dedicated optical accessory engineered to eliminate stray light and oblique sun glare on compatible 50 mm objective optics. Constructed from machined aircraft-grade aluminium with a matte black anodised finish, this 3-inch (76.2 mm) sunshade threads directly into the objective bell using an M52 x 0.75 pitch. By shading the front glass element against low-angle sunlight, it prevents internal lens flare and white-out contrast loss during demanding field and range conditions.

Key Features

• Direct-Thread Compatibility: Features precise M52 x 0.75 threading engineered specifically for select GPO SPECTRA series 50 mm objective lenses.
• Contrast Preservation: Provides 3 inches (76.2 mm) of forward shade to shield the objective lens from stray, oblique sunlight and eliminate optical wash-out.
• Standoff Physical Protection: Extends the forward reach of the scope body to act as a barrier against dust, airborne debris, rainfall, and field brush without obstructing the central sight path.
• Durable All-Aluminium Construction: Machined from aircraft-grade aluminium with a non-reflective matte black anodised finish to withstand standard rifle recoil.
• Passive Operation: Fully mechanical design requiring no power source, batteries, or electronic integration.

Specifications

• Product Model: A351
• Thread Pitch: M52 x 0.75
• Length: 3 inches (76.2 mm)
• Objective Lens Compatibility: 50 mm
• Compatible Scope Models: GPO SPECTRA 4x 4–16x50i, GPO SPECTRA 6x 2–12x50i, GPO SPECTRA 8x 2–16x50i
• Material: Machined aircraft-grade aluminium
• Finish: Matte black anodised

Who is the GPO 50mm Sunshade for?

• Open-country and outback hunters — Operating in intense, high-glare environments where shooting towards low-angle sun requires the 3-inch (76.2 mm) extension of this riflescope sunshade to eliminate lens flare and maintain target clarity on 50 mm optics.
• Long-range sport shooters — Competing or training on open daylight ranges with GPO SPECTRA scopes requiring the exact M52 x 0.75 thread specification to block stray light without causing mechanical vignetting across the 50 mm objective sight path.

Less suitable for: Riflescopes fitted with 42 mm, 44 mm, or 56 mm objective lenses, or 50 mm optics utilizing non-M52x0.75 thread dimensions, which require objective-specific sunshades matching their exact diameter and thread pitch.