---
product_id: 3879452
title: "Williams Ruger MkII/MkIII Bull Barrel Fire Sight"
brand: "williams"
price: "NT$35"
currency: TWD
in_stock: false
reviews_count: 8
url: https://www.desertcart.tw/products/3879452-williams-ruger-mkii-mkiii-bull-barrel-fire-sight
store_origin: TW
region: Taiwan
---

# Faster target acquisition Fiber optic visibility Made in USA aluminum Williams Ruger MkII/MkIII Bull Barrel Fire Sight

**Brand:** williams
**Price:** NT$35
**Availability:** ❌ Out of Stock

## Summary

> 🎯 Lock on faster, shoot sharper — never miss your mark again!

## Quick Answers

- **What is this?** Williams Ruger MkII/MkIII Bull Barrel Fire Sight by williams
- **How much does it cost?** NT$35 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/3879452-williams-ruger-mkii-mkiii-bull-barrel-fire-sight)

## Best For

- williams enthusiasts

## Why This Product

- Trusted williams brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Durability:** Crafted from premium aluminum for a balance of strength and featherlight feel at just 3 ounces.
- • **Pro-Level Installation:** Simple gunsmith recommended install with easy screw and pin removal—DIY friendly with online guides.
- • **Seamless Compatibility:** Specifically engineered for Ruger MkII and MkIII 22/45 models without rear logo stamp for perfect fit.
- • **Precision in Every Shot:** Bright fiber optic front (red) and rear (green) dots ensure crisp, clear sight picture even in low light.
- • **Upgrade Your Range Game:** Speed up target acquisition and accuracy to leave your shooting buddies envious.

## Overview

The Williams Ruger MkII/MkIII Bull Barrel Fire Sight is a lightweight, durable aluminum fiber optic sight system designed exclusively for select Ruger 22/45 models. Featuring bright red and green fiber optic dots, it dramatically improves target visibility and acquisition speed, especially in low-light conditions. Made in the USA and easy to install with basic gunsmith tools, it’s the ultimate upgrade for precision shooters seeking enhanced accuracy and a competitive edge.

## Description

These sights will only work on a Ruger Mark III and 22/45 that DO NOT have the Ruger logo stamped on the rear stock sight. If you DO have the Ruger stamped on the rear stock sight, these sights will NOT work. Please search for item 71054. These fiber optic sights will make your buddies jealous the next time you go to the range. They collect surrounding light rays to offer you superb visibility even in dark conditions. Features bright green fiber optic rear dots and a bright red fiber optic front dot that will give you a crisp, clear sight picture. Super easy installation as well. Speed up your target acquisition and improve your accuracy today with Williams FireSights. Will work with the following MKII and MKIII Ruger models: 22/45 Competition 22/45 Government Target 22/45 Target 22/45 Hunter Competition Government Target Target Hunter Bull Barrel Slabside.

Review: A much needed upgrade to the Ruger Mk III - The brighter fiber sight is definitely a plus, but the more imortant part to me was having a finer sight line. The stock sights are too large and bulky and if you are aiming at a small target the sights would black out the target. At 20 yards the stock front site view was wider than a 12 oz can. These sights give a much finer sight line for better precision shooting. Installation was very easy. Precision screwdriver, small hammer, needle nose pliers, blue lock tight, and a jumbo paper clip (suggested by another reviewer). I cut a small piece of the paper clip to drive out the pin, worked like a charm. After reading the reviews I was careful not to loose the spring under the rear sight. It wasn’t difficult at all just something to pay attention to. Also mentioned by another reviewer be careful not to damage the screws when you remove them you re use them! Be sure to have a screwdriver that fits. Definitely money well spent!
Review: Slightly tricky to install, but they work great! - I installed these myself on my Ruger MkII bull nosed 22. Find a high quality screwdriver that's a perfect match for the front sight screw so you don't ruin the screw. You have to push the little pin out in the rear sight. I used a very small allen wrench as a punch to push the pin out using a plastic faced hammer to bump it out. Don't lose the pin, and don't lose the little spring that pushes up on the upper part of the site. There are Youtube videos to show you how to do it right if you can't figure it out. I took it to the range, and right away my alignment left right was perfect and dead on center. I adjusted the rear sight in the vertical direction one or two clicks at a time until I was dead on in the vertical direction. Both my daughter and I were getting nice clusters in a nice little baseball sized spot in the bullseye area from about 15 yards out. Better than I was ever able to do with the stock black sights. The sights are much easier to see in the dim lighting of the indoor firing range. As far as I can tell so far, the quality is great. No problems whatsoever.

## Features

- Firesight Adjustable Set Ruger Mark Ii/iii Bull Barrel/governmen
- Williams Gun Sight Co.inc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005431HUU |
| Brand | Williams |
| Brand Name | Williams |
| Color | Green,Red |
| Compatible Devices | Ruger Mark III, Ruger 22/45 |
| Customer Reviews | 4.6 out of 5 stars 355 Reviews |
| Item Display Weight | 3 ounces |
| Item Weight | 3.04 ounces |
| Manufacturer | Williams |
| Manufacturer Part Number | FBA_70957 |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Name | FBA_70957 |
| Model Number | 70957 |
| Mounting Type | Ruger Mount |
| Sport | Hunting |
| Sport Type | Hunting |
| UPC | 053506709571 |

## Product Details

- **Brand:** Williams
- **Color:** Black
- **Compatible Devices:** Ruger Mark III, Ruger 22/45
- **Manufacturer:** Williams
- **Material:** Metal
- **Model Name:** FBA_70957
- **Mounting Type:** Ruger Mount
- **Night vision:** Yes
- **Sport:** Hunting
- **Weight:** 3 ounces

## Images

![Williams Ruger MkII/MkIII Bull Barrel Fire Sight - Image 1](https://m.media-amazon.com/images/I/41DDO2YE5BL.jpg)
![Williams Ruger MkII/MkIII Bull Barrel Fire Sight - Image 2](https://m.media-amazon.com/images/I/41SCiEjoICL.jpg)
![Williams Ruger MkII/MkIII Bull Barrel Fire Sight - Image 3](https://m.media-amazon.com/images/I/418WeiFSLkL.jpg)
![Williams Ruger MkII/MkIII Bull Barrel Fire Sight - Image 4](https://m.media-amazon.com/images/I/41gFmxtoH5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A much needed upgrade to the Ruger Mk III
*by J***E on December 8, 2018*

The brighter fiber sight is definitely a plus, but the more imortant part to me was having a finer sight line. The stock sights are too large and bulky and if you are aiming at a small target the sights would black out the target. At 20 yards the stock front site view was wider than a 12 oz can. These sights give a much finer sight line for better precision shooting. Installation was very easy. Precision screwdriver, small hammer, needle nose pliers, blue lock tight, and a jumbo paper clip (suggested by another reviewer). I cut a small piece of the paper clip to drive out the pin, worked like a charm. After reading the reviews I was careful not to loose the spring under the rear sight. It wasn’t difficult at all just something to pay attention to. Also mentioned by another reviewer be careful not to damage the screws when you remove them you re use them! Be sure to have a screwdriver that fits. Definitely money well spent!

### ⭐⭐⭐⭐⭐ Slightly tricky to install, but they work great!
*by T***C on January 30, 2014*

I installed these myself on my Ruger MkII bull nosed 22. Find a high quality screwdriver that's a perfect match for the front sight screw so you don't ruin the screw. You have to push the little pin out in the rear sight. I used a very small allen wrench as a punch to push the pin out using a plastic faced hammer to bump it out. Don't lose the pin, and don't lose the little spring that pushes up on the upper part of the site. There are Youtube videos to show you how to do it right if you can't figure it out. I took it to the range, and right away my alignment left right was perfect and dead on center. I adjusted the rear sight in the vertical direction one or two clicks at a time until I was dead on in the vertical direction. Both my daughter and I were getting nice clusters in a nice little baseball sized spot in the bullseye area from about 15 yards out. Better than I was ever able to do with the stock black sights. The sights are much easier to see in the dim lighting of the indoor firing range. As far as I can tell so far, the quality is great. No problems whatsoever.

### ⭐⭐⭐⭐⭐ Great sights for Steel Challenge
*by R***2 on June 20, 2019*

At 50, my eyes are not what they used to be and black on black irons just was not working for me anymore. As such, I replaced the sights on my mid-90’s era Ruger 22/45 with this sight set for rimfire steel challenge matches. The difference in visibility and sight pickup speed is incredible as they are just so much easier to see. Installing the sights was about as simple as you could hope for when it comes to changing pistol sights. The factory front sight is held in place with a single flat head screw and the rear sight leaf has an elevation screw and a single 1/16” pin. Remove the two screws (one in the front sight and one in the rear sight), tap out the pin and reinstall the new sights in the reverse order. Just remember to add a drop of blue Loctite to the front sight screw before putting it back in. From there, all it takes is a quick trip to the range to get the sights back on target.

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-10-19*