Fiber Optic Front Sight for Ruger® Mark IV™ and 22/45™ Install Instructions
At a glance:
- Features highly visible fiber optic light tube for quick target acquisition
- Made of Aluminum for long lasting durability
- Includes red optic tube for customization
Supported Firearms:
- Ruger® Mark IV™ 22/45™ LITE
- Ruger® Mark III™ 22/45™ LITE
TANDEMKROSS sights are protected against mechanical failure for life by TANDEMKROSS’s Lifetime Guarantee. Fiber optic light pipes are highly susceptible to breaking within typical intended use and are guaranteed for the first six months after the time of purchase. Learn more about our warranty and returns policies here.

110 Reviews
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Bright and crisp
Bright and much easier to see than stock sights. Paired perfectly with the shadow rail. Easy and quick to install
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Ruger Mark IV fiber optic
Very nice front sight, easy to install and much easier to use that standard front sight
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Brighten up your next range visit!
This is just the upgrade you need for your Ruger Mark IV 22/45 Lite. This new front sight pops with color, and looks cool too. This replacement sight is ready to install, and Tandemkross even supplies the tools required for an effortless installation. Note. The screw provided did not fit my barrel.
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Fiber Optic Front Sight
This is a must have for the Ruger 22/45 Tactical. This really enhanced my grouping and allowed better shot placement.
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Fiber Optic Front Sight for Ruger® Mark IV™ & 22/45™
Very easy to install. It is a night and day difference in comparison to factory sight. Makes target alignment and sight picture much easier. Would purchase again if needed.
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Fiber Optic Front Sight for Ruger® Mark IV™ & 22/45™
Great improvement over the black stock sight, would be even better if TK made a Fiber Optic rear sight to go with it.
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Great Sight
Received my new front sight today. Easy installation and looks great. Vast improvement over the factory front sight. Can’t wait to get to the range and try it out! I recommend this sight.
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Mk-4 front sight
Seems to be as good as the other brands and at half the cost.
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Fantastic
Perfect fit and it came with the Allen wrench to remove the factory sight even though the screw that comes with the sight is a torx bit. Classy move