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Williams™ Aperture Regular WGRS 3/8" Diameter with .150 Hole Long Shank - 44561

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Quick Overview

Williams™ Aperture Regular 3/8"  44561 is designed to fit standard thread size and will accommodate Williams, Redfield and Lyman receiver sights.

Availability: Backorderable



Williams™ Aperture Regular WGRS 3/8" Diameter with .150 Hole Long Shank

Williams™ Aperture Regular WGRS 3/8" 44561 are designed to be used on Williams™ WGRS sights. The Williams™ Aperture Regular WGRS 3/8" 44561 creates a sharp contrast that gives quick definition to the aperture. It is important to note the following when choosing the correct Aperture for your sight:


  • The fractional dimension is the outside diameter of the metal aperture.
  • The decimal dimension is the size of the hole drilled in the aperture used to aim.
  1. Great for the Williams Rear Sight and Rail Combo review by Pro Gun on 6/28/2017

    I bought the Williams Rear Sight and Rail Combo for my Mossberg 500. I wanted my shotgun to pull a dual role duty purpose. The first one is for Home Defense and the second one is for Deer Hunting. These Williams Aperture replacement sights do just that for me. I bought three different sizes to see what would work for me. The .150 size is very much as good as the ghost ring sight for home defense. The other sizes .093 and .125 will be good for Deer Hunting. The sizes will depend on the distance you plan on hunting and your eye sight.

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Most items ship within 1 business day. We ship orders from our warehouse Monday through Friday. If an in-stock order is placed on Friday evening, Saturday or Sunday, it may not ship out until the following Monday. We rush-ship directly to customer's doors throughout the United States. Depending on the shipping method and area of the country, orders can arrive between 1 and 7 business days. 


Standard Ground FREE over $50 4-7 Business Days
Three-Day Variable Cost 3 Business Days
Two-Day Variable Cost 2 Business Days
Overnight Variable Cost 1 Business Day

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If you are not 100% satisfied with your order, you can return it to us for a refund or exchange within 30 days of delivery. We accept returns on all products that have not been used or registered, no questions asked. All returns are subject to a 5% Re-Stocking Fee. To make returning an item easy, contact our friendly customer service representatives toll free 1-855-297-7000.

warning-iconWARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to -