Rusan Weaver Rings 40 mm Thumb Screw (H8)

The Rusan Weaver Rings 40 mm Thumb Screw (H8) are precision-made ring mounts that secure a 40 mm riflescope tube to a Weaver (and Picatinny) rail. Built with a reliable thumb-screw attachment system, these mounts provide a solid, repeatable connection between your scope and rifle, perfect for hunting, field use, or sport shooting where simplicity and stability matter.

⭐ Key Features

• 40 mm Tube Compatibility: Specifically designed to firmly hold 40 mm diameter scope tubes for large-objective optics.

• Thumb Screw Attachment: Tool-free mounting using integrated thumb screws makes installation and removal quick and convenient.

• Weaver & Picatinny Ready: Primarily built for Weaver rails, but compatible with Picatinny rails when properly aligned for recoil lug engagement.

• Durable Steel Construction: Made from high-grade material for strength and long-lasting performance in the field.

• Medium-Low Height (H8): Provides balanced clearance for many rifle setups, suitable for scopes with larger objective lenses.

• Secure Zero Retention: Designed to help maintain consistent optic alignment and shot accuracy once mounted.

• Anodized Matte Black Finish: Protects against corrosion and reduces glare for tactical and hunting applications.

📊 Technical Specifications

📌 Performance & Use

The Rusan Weaver Rings (40 mm, H8) are ideal for shooters who want a durable, no-fuss mounting solution that balances strength with ease of use. The thumb-screw design allows you to attach or remove your optic quickly without tools — especially valuable when packing gear or switching optics between firearms.

While made for Weaver rails, these rings can also be used on Picatinny rails as long as the recoil stop is engaged properly to prevent unwanted movement under recoil. The medium-low (H8) height gives enough clearance for many large-objective scopes while still keeping your optic at a comfortable height for eye relief and shooting position.

Great choice for:
✔ Large-tube riflescope setups
✔ Hunters and sport shooters needing quick & secure scope mounting
✔ Situations requiring tool-free attachment and removal
✔ Rugged field or range use where stability matters

📦 What’s Included

• Pair of Rusan 40 mm Weaver Rings with thumb screws
  (Rifle and riflescope not included)

🛠️ Installation Tips

1. Ensure firearm is unloaded before starting mounting.

2. Slide rings onto the Weaver rail — if using Picatinny, position so the recoil lug seats properly.

3. Place your 40 mm scope in the rings and adjust for eye relief and reticle level.

4. Tighten thumb screws securely, but avoid over-tightening to protect the scope tube.