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  • T/C® Octagon Barrel Fiber Optic Sights - Thompson Center RiflesT/C® Octagon Barrel Fiber Optic Sights - Thompson Center Rifles

T/C® Octagon Barrel Fiber Optic Sights - Thompson Center Rifles

Model: 66654

Sights fit T/C octagon barrel muzzleloader rifles
Made in the USA - machined aluminum fiberoptic sights


Availability: Out of Stock

Fast Shipping. Best Prices.


Made for use with Thompson Center® Octagonal Barreled Rifles. These Williams® Fire Sights™ are the perfect compliment to any traditional T/C rifle, and are easy to mount to your rifle barrel with just two screws. Sight your rifle in faster no matter what the lighting conditions are. Firesight™ Fiber Optic Sights give you the ultimate in visibility and durability. Front and rear sight combo helps you sight in on target, even in fading light or against a low-contrast background. 

***These Williams® Fiber Optic Sights are made of a durable metal housing.

MODEL 66654
Fits T/C Muzzleloaders
T/C® Octagon Barrel Fiber Optic Sights - Thompson Center Rifles

T/C® Octagon Barrel Fiber Optic Sights - Thompson Center Rifles.

Rating: 4.3/5 based on 4 review(s)
  • Price: 30.00 - Out of Stock
    Sold by
  1. Works great ! review by Bearpaw on 10/29/2019

    "After reading the reviews and some with issues I had a gun smith install the sights on my TC Renegade .50 cal. Sights were installed with no additional holes needed to be drilled and tapped on the rear sight. He did secure the front sight with an added screw to keep it secure. These sights are a real game changer!"

  2. Does not Fit review by Ross Holter on 3/1/2019

    "Front sight worked fine but as stated before by another buyer the rear sight does not match the stock rear sight holes. For it to work you would have to have the barrel tapped. This sight is much shorter than the original TC rear sight. "

  3. Rear Site does not match my original site screws. review by Mike R. on 10/18/2015

    "Front site fitted well after installation. Rear site was half the length of the original and the two new screw holes did not match up with the original holes which are further apart."

  4. Good Value review by Jim W. on 8/19/2015

    "I'm just a casual shooter with less than 20/20 eyes so I wear glasses. I purchased this for my Traditions Hawken 50cal. I must say this has certainly improved the sight picture for me. I have not shot the gun yet but I can see the sights much better. The biggest issue was fitting the front sight. I expected this as all dovetails are not created equal. So you may need a lot of filing of the front sight. The rear sight mounted ok but I had to use the rear mounting hole and the original screw from the Tradition's sight. All in all it seemed to work out ok."

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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 1-855-236-5000.


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 in 1-5 business days. Our policy as an organization is to successfully deliver on all orders, regardless of the chosen shipment method.


Standard Ground $20.00 4-7 Business Days
Three-Day $40.00 3 Business Days
Two-Day $60.00 2 Business Days
Overnight $90.00 1 Business Day


Standard Ground $6 to $12 3-5 Business Days
Three-Day $25.00 3 Business Days
Two-Day $30.00 2 Business Days
Overnight $50.00 1 Business Day