Williams Fire Sight - 602588 - Ruger® Mark Series Bull Barrel

Williams Gun Sight Company

(78 reviews) Write a Review
0.50 LBS
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At a Glance:

  • Fiber optic sights for improved sight picture
  • Precision-made; blued steel and aluminum
  • Elevation and windage adjustments


IMPORTANT: Williams Gun Sight Company STRONGLY recommends this product be installed by a professional gunsmith.


The Williams Fire Sights - 602588 - Ruger® Mark™ Series Bull Barrel sights are sure to turn some heads the next time you go to the range with your Ruger® Mark IV™. The sights collect surrounding light rays to offer you superb visibility, even in dark conditions.


This Fire Sight Set from Williams Gun Sight Company features bright green fiber optic dots on the rear sight and a bright red fiber optic for the front dot. This gives you a crisp, clear sight picture for rapid target acquisition.


Grab a set of the Williams Fire Sights - 602588 - Ruger® Mark™ Series Bull Barrel sights today!


Supported Models:


If you are interested in Williams Fire Sights for a Ruger® Mark III™ 22/45™ LITE or Mark IV™ 22/45™ LITE, please click here.


The Williams Gun Sights product numbers 70957 and 71054 have been discontinued. This sight (602588) is replacing those products.


PLEASE NOTE: These sights require drifting out the ENTIRE rear sight and fully replacing it with the included Williams dovetailed rear sight. Because of this Williams Gun Sight Company STRONGLY recommends this product be installed by a professional gunsmith. TANDEMKROSS will NOT accept returns or exchanges for this if it is damaged during a failed installation attempt.


For further questions about installation or to determine which Williams sights are right for you, please reach out directly to Williams Gun Sight Company: 1-800-530-9028 ext 228

WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

78 Reviews

  • 5
    Blazing bright

    Posted by Jim on 17th Aug 2021

    These sights are great! I was having trouble seeing the black factory sights, especially when shooting a black target. I put these sights on my Mk II 22/45 and it s like a whole new gun! They need ambient light hitting them to light up , so don t expect them to glow in the dark. But they certainly glow in the daytime. Easy to install with the correct screwdriver and a nylon head hammer and nylon punch.

  • 5
    Williams Fire Sight

    Posted by Brian Matthews on 21st Jun 2021

    Great sight for my old eyes and well made. Super price and fast shipping.

  • 5

    Posted by Gary Shick on 9th Jun 2021

    This purchase was my second set of William's fire sights from Tandem Cross. Initially, the first purchase, I installed these sights on my Ruger MK IV. I liked them so well I installed the second set on my Ruger MK III. Commendable service by Tandem Cross, excellent product and price as well.

  • 5
    Williams fire sights

    Posted by Phillip Osborne on 6th Jun 2021

    100% satisfied, will purchase again!

  • 5
    Williams fire sights

    Posted by Scot Engel on 5th Jun 2021

    I am satisfied with the sights

  • 5
    williams fire sight MK

    Posted by jkgman on 13th Apr 2021

    great price $60.00+ elsewhere. only con would be does not come with allen key to tighten and can't find proper size (does anyone know size).

  • 5
    wilson sight

    Posted by Peter on 20th Mar 2021

    great product. sights are bright. very fair price relative to others.

  • 4
    Nice Sights

    Posted by Joe on 7th Mar 2021

    Installed the set of sights on a MkIII with a stainless bull barrel. The rear required a little file work to fit in the dovetail but other than that install was easy. The sights themselves are exactly what I wanted and are super bright. Definitely recommend if you're looking for a nice set of fiber optic sights for your Ruger.

  • 5
    williams fire sight

    Posted by Lonne sower on 2nd Feb 2021

    worked as advertised, tricky to install as advertised, picks up quit a bit of light in daylight or overcast. Not so good in shadow and not a night sight. I consider it a bargain for front and rear sights.