"Eagle Eye" Rear Peep Sight For Williams Fire Sights


(36 reviews) Write a Review
0.30 LBS
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EagleEye Peep Sight Installation Instruction


At a Glance:

  • Easy drop-in installation
  • Instinctive sight centering
  • Full function of rear windage and elevation controls


Improve your target acquisition with this affordable drop in upgrade!


When shooting round steel targets it is advantageous to have a round rear sight. The circular plate fills the arc of the sight to make for easy target acquisition.

Made of CNC machined aluminum for long lasting durability. The "Eagle Eye" Rear Peep Sight For Williams Fire Sights is anodized matte black, to absorb light and reduce glare. This easy to use upgrade allows the shooter to intuitively center the front sight in the aperture, resulting in clear and faster front sight focus.


The “Eagle Eye” Peep Sight drops into a wide variety of Williams Gun Sight Co. fiber optic sights for added flexibility. The new ghost ring style peep sight, will fit KelTec CP33™, Smith & Wesson® SW22 VICTORY® sights and more!


Give yourself an optical advantage with the new TANDEMKROSS “Eagle Eye” Peep sight for Williams Fire Sights! An ideal upgrade to your sight picture for accelerated target acquisition.


Supported Gun Models:

  • KelTec CP33
  • Smith & Wesson® SW22 VICTORY®
  • Select Ruger® MK Series
  • Ruger® Single-Ten®


Supported Williams Fire Sight Models:

  • 633505 - Ruger® MKIII™ 22/45™ LITE, Ruger® MKIV™ 22/45™ LITE
  • 602588 - Ruger® MKII™, MKIII™, MKIV™ Bull Barrel
  • 616319
  • 71013
  • 71053
  • 71054
  • 70957
  • 70959

*This will accommodate the WFS Rear Sight with the U-shaped fiber optic:

*NOTE* This part works by backing out the windage adjustment screw, removing the rear fiber optic and replacing the piece with the “EagleEye” Peep Sight.

This part will only accommodate Williams Fire Sights with a removable elevation control and U-shaped rear fiber optic.


Don't forget, all TANDEMKROSS products are Made in the USA and come with a LIFETIME guarantee!


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.

36 Reviews

  • 5

    Posted by Dan on 29th Jul 2023

    Works fine. Sights like my M1. Easy fit.

  • 5
    Peep Sight Review

    Posted by Van Hutches on 13th Aug 2022

    Installation of the peep sight took all of five minutes. I took it to the range and shot steel plates...it is a dream. Very fast target acquisition. I am looking forward to going to a steel challenge match in Texarkana and giving it test run.

  • 5
    Peep sight

    Posted by Noel Carter on 24th Jul 2022

    Easy to pick up target for quick shooting on steel target

  • 5
    peep sights

    Posted by david on 23rd Jun 2022

    have three of these sights and they are really easy on the eyes. just center the front sight in center of the peep sight( after u have sighted the sights in) and u are ready to go. very quick alignment for ageing eyes. sights are made well and instruction very clear

  • 5
    Peep sight

    Posted by Mark Hoffman on 26th May 2022

    I hadn t used a peep sight since I was in the Army. I have a stigmatism and can not see a red dot clearly. With my old eyes I could use this peep sight (with your fiber optic front) perfectly!

  • 5
    Wanna go fast???

    Posted by Lyno Jay Sonza on 18th May 2022

    Game changer rear Sight I would recommend for competition! Significantly improves speed in our experience. Easy to install I highly recommend it

  • 5
    Eagle Eye

    Posted by MIHAEL on 15th Feb 2022

    Still working with it. Seems to allow me to hit more things a little more accurately. Easy installation.

  • 5
    Eagle eye peep site

    Posted by Kenny Caffrey on 23rd Oct 2021

    This is the second one that I've purchased, I have one on my 10" stainless barrel for my mark iv and this one is for my 4.5" threaded barrel for my mark iv and I'll be getting another when I find a 6" ish competition barrel that I like. This works great with the fiber optic front site. I would most definitely tell anyone to purchase this great product

  • 5
    "Eagle Eye" Rear Peep Sight

    Posted by R Richards on 16th Jul 2021

    Not as precise as the fire sights but with practice allows for much quicker target acquisition with decent grouping.