• Approximate lower-third co-witness with TANDEMKROSS Shadow Mount V3
• Bright fiber optics and a tall sight plane for fast target acquisition
• Fully adjustable rear sight and quick-change front light pipe

The Eagle Eye Fiber Optic Sight Set for Ruger® Mark™ Series gives you a bright sight picture and a low co-witness with common red dots when used with the TANDEMKROSS Shadow Mount V3 or V2* (see compatibility notes below). Designed with speed and simplicity in mind, the sights raise your sight picture for faster acquisition while maintaining a sleek profile when paired with an optic or solo!

Whether you're building a competition-ready rimfire pistol, tactical plinker, or something else entirely, rapid target acquisition matters. The bright fiber and tall sight plane let you find your target in any situation while giving you peace of mind in case your electronic optic fails.

TANDEMKROSS's unique mounting solution for the rear sight installs quickly and securely. A dovetail insert and screw firmly fasten the rear sight to the receiver with no permanent modification required. This unique installation method smoothly blends the rear sight into the outside diameter of the receiver. Fiber colors are also user-changeable in seconds, allowing you to modify the sights to your personal preference.

Bright, simple to install, and made for the Mark™ Series: get your Eagle Eye Sight Set today.

Supported Models:

The Eagle Eye Fiber Optic Sight Set for Ruger® Mark™ Series is compatible with both standard and 22/45™ variants of Ruger® Mark II™, III™, and IV™ pistols with LITE or bull barrels with adjustable factory sights.

COMPATIBILITY NOTE:

• NOT compatible with fixed sight models, tapered barrel models, models without factory iron sights, or models with "vent ribs"/direct optic mounts (such as Ruger® model number 43949)
• *Cowitness not achievable with C-More Railway or C-More Slideride optic on Shadow Mount V2. An approximate lower-third cowitness achievable with all other compatible footprints on both V2 and V3 Shadow Mounts

IMPORTANT:

• Gunsmith assistance strongly recommended for removing factory rear sight
• Slight misalignment between the front sight mounting hole, optic mount holes, and rear sight dovetail typical on some receivers. Some of these elements may look slightly tilted relative to the others. Any possible misalignment will be emphasized with taller sights. The rear sight features unique rotational adjustment. This may not be enough to fully compensate for misalignment in worst case scenarios.

TANDEMKROSS sights are protected against mechanical failure for life by TANDEMKROSS's Lifetime Guarantee . Fiber optic light pipes are considered wearable parts and are guaranteed for the first six months after the time of purchase.

California Residents: AB 1263 - Action Required

California law (AB 1263, effective January 1, 2026) requires additional verification before certain items can be shipped to a CA address.

To place an order you must:

1) Provide a clear photo of a valid government-issued photo ID

• Must be 18+

• Shipping address must match the ID

2) Acknowledgement

You must confirm that:

• You are at least 18 years old

• You understand CA law restricts certain firearm-related activities without proper licensing

• You agree that an adult signature will be required upon delivery

• You agree to comply with AB 1263 requirements

If you do not want to provide a picture of your photo ID and give your acknowledgement, you may not order this item.