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.

107 Reviews
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fiber optic sight
Only took a couple of minutes to put on and it worked like it should. Quality was like everything else I've purchased from Tandemkross----PERFECT.
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Ruger Mark IV Tactical Front Sight
Very nice sight but too low for my Ruger Mark IV Tactical. I can only see about two thirds of the sight over the factory picatinny rail. I had to remove the rail to see the whole sight. Comparing it to the stock sight and a Williams fire sight shows that it s smaller. Could I have the wrong part or is this normal?
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Fiber optic front site review
This is the second one that I've purchased for my mark iv, I have one on my 10" stainless barrel and I just put one on my 4.5" threaded barrel and I'll be getting another one when I find a 6" ish competition barrel that I like if it doesn't already have a fiber optic site on it. I most definitely would tell anyone to buy one that needs a fiber optic front site! Also this works perfectly with the eagle eye peep site!
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Great Upgrade
This sight is a great upgrade to the original iron sights... the dot pops up and makes it very easy for the target acquisition. My son who shoots the Mark IV loves it.
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Good sight
Looks great and installed easily. While I appreciate TK for sending allen wrenches with the sight, they didn't quite seat fully into the screw. I found that a 2mm wrench did the trick.
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FIBER OPTIC SIGHT
GREAT SIGHT, EASY TO INSTALL AND FIT PERFECT. VERY BRIGHT AND EASYBTO PICK UP.
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Perfect sight!
I liked this much more than the truglo and i think this one was cheaper!
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fiber optic front sight
sight really pops with the black notch fear sight way to go tk thanx
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Fiber Optic front sight
Great affordable for rapid front sight acquisition. Old eyes necessity. 55q