The Hawke Professional Flip-Up Cover – Ocular (Endurance WA / 46mm, MPN: 61150) is an ocular eyepiece lens cover engineered to shield riflescope glass from dirt, dust, mud, precipitation, scratches, and impact during transport and field use. Machined from high-grade anodised aluminium with a matte black finish, this friction clamp-on cap provides rigid protection against physical impacts and centrefire recoil. A tactile opening lip enables rapid, one-handed operation even while wearing gloves, while internal position stops allow the cap to fold flat against the scope tube or lock at preset angles to maintain an unobstructed sight picture.

Key Features

• Centrefire Recoil-Rated Aluminium Construction: High-grade anodised aluminium body protects the ocular glass against direct impact, abrasive field debris, and standard centrefire recoil.
• 360-Degree Rotational Mounting: The friction-fit collar rotates 360° prior to final clamping, allowing the lid to open upward, to the left, or to the right for bolt handle clearance and ambidextrous use.
• Mechanical Positioning Stops: Integrated stops hold the cap securely open or flat against the optic body, preventing the cover from dropping into the shooter's line of sight during recoil.
• Tactile One-Handed Actuation: The lid features an extended lip designed for swift flick-open deployment with bare or gloved fingers.
• Thread-Less Clamp Interface: Installs via a slip-on friction collar engineered specifically for non-threaded scope eyepiece bells.

Product Specifications

• Model / MPN: 61150
• Accessory Type: Riflescope ocular flip-up cover
• Internal Clamp Interface: 46 mm external diameter
• Material: High-grade anodised aluminium
• Finish: Matte black
• Mounting Method: Thread-less friction clamp
• Adjustment Range: 360° rotational positioning
• Power Requirements: None (passive mechanical accessory)
• Confirmed Scope Compatibility: Hawke Endurance 30 WA models (including 3–12×56, 4–16×50, and 6–24×50)

Who is the Hawke Ocular Endurance WA Cover for?

• Hunters using Hawke Endurance 30 WA riflescopes — Attaches directly over the 46 mm external diameter thread-less eyepiece bell of wide-angle Endurance optics, providing a dedicated metal flip-up cover that withstands centrefire field recoil without shifting.
• Shooters operating in dusty or abrasive Australian bush environments — Delivers sealed aluminium mechanical protection that keeps fine dirt and abrasive debris off the ocular glass, while the 360-degree rotational mounting lets users orient the hinge to clear bolt throw or adapt to left-handed rifle setups.

Less suitable for: Riflescopes with a 44 mm ocular bell or non-standard eyepiece dimensions, which require a smaller 44 mm aluminium optic cap or flexible multi-diameter slip-on rubber scope covers.