I’m of the opinion that iron sights are great, when you can see them. Which is why I’ve decided to try out the TandemKross Eagle Eye fiber optic sights for the the Ruger PC Carbine. This inexpensive ($59.99) sight set replaces the factory sights with highly visible fiber optics. They collect light, and make for faster and easier acquisition. In addition to the reasonable pricing, they are also easy to install at home. Finally, they don’t change the functionality of the fully adjustable rear sight. So they are just a win all around. You can purchase them as a set, or individually. Here’s a rundown of both.
Step 1: Install the Fiber Optic Front Sight for the Ruger PC Carbine
Machined from aluminum with a low-reflective finish, the front sight is a drop-in replacement for the factory unit. It ships with a green light tube installed, and a spare red one. My preference is to keep the green for contrast against the red rear sights. It seems as though it’s easier to pick up in more diverse lighting conditions as well.
Installation requires a single T10 Torx wrench. Unscrew the two screws of the factory sight and remove the sight. Attach the new sight using either of the screws, and the rear hole in the barrel. I’d recommend a dab of blue Loctite, or similar non-permanent thread-locker. That’s it. Like the factory sight, this one is fixed in place, so there is nothing to adjust. All windage and elevation changes are made at the rear sight.
Step 2: Install the Eagle Eye Fiber Optic Rear Sight for the Ruger PC Carbine
As much as I like the factory ghost ring rear sight, the fiber optics are probably better for fast shooting. This small aluminum block contains two red fiber optic tubes. Because it sits on top of the bottom half of the rear sight, the elevation adjustment does not change. Windage is also easily corrected via a set screw.
Like the front sight, the rear sight is also a simple swap. Loosen the set screw and slide it out of the dovetail. Carefully push the replacement sight in, with the logo facing the right side. Make sure the sight is centered as much as possible. Then gently tighten the set screw with the included wrench. Note that this will almost certainly require a few test shots to dial in.
Step 3: Enjoy a new brighter, easier to acquire sight picture 🙂
I had my PC Carbine in the TandemKross Upriser Chassis before installing these sights. That setup included a Vortex Spitfire red dot. Since I was reviewing another PC Carbine accessory at the same time, I put it back in the original stock to test out the sights. As much as I liked the chassis and red dot, there is something to be said for the simplicity of a plain rifle stock and some good sights. No batteries, no adjustments, just aim and shoot. I’ve got fiber optics on a few other firearms, and really appreciate how easy they are to use. The factory sight might offer more precision, but I’ll take speed over precision, as this rifle is mostly used for plinking.
Step 4: Not what you would think
With all the cool accessories for the PC Carbine, this rifle has become something of a test platform. Unlike the 10/22, I can’t just build a new one each time I want to review a new part. So I’m continually adding and removing bits and pieces. At the same time, my son has a totally stock PC Carbine. Most of his shooting is at empty cans and clay pigeons set up out to no more than 50 yards or so. These sights would be just fine for that. After my time with them, I removed them, and sent them to my son. He’ll do the long-term testing and report back if there are any issues. And I will miss them just enough that I might order another set for myself.
Conclusion
If your shooting style leans more towards speed than precision, these are worthy of consideration. If you’ve got less than perfect eyesight, and want to hang on to irons for a little while longer, they’re an option too. And if you just like to tinker and customize, go crazy. They look and work great.
In a perfect world, I could run 1,000 rounds through my PC Carbine, and see if the sights held up to that much use. I expect that they will. It’s not just shooting, but all the rough handling in and out of the safe, being thrown in car trunks and bouncing around in a truck bed. But the ammo that cost $200 last year now runs about $600. Which is more than I paid for this rifle in the first place. So I can’t do a torture test. Not that it matters – TandemKross guarantees these American-made sights for life.
I’d like to thank TandemKross for providing yet another great product to review. If you’ve got any questions or comments, or you’ve tried these sights, what do you think of them? Feel free to share below.
User Experiences & FAQs
Real shooter experiences
- Owners on RimfireCentral and Reddit (r/PCCarbine / r/SmallGuns) praise the TandemKross Eagle Eye sights for dramatically improving sight acquisition at short ranges and in low light compared with the stock irons.
- Comments on TandemKross product pages and retailer reviews (Brownells / MidwayUSA) highlight the simple drop-in install and the included spare colored fiber for tuning contrast to your preference.
- Range reports across forums note that the green front / red rear combo provides strong contrast in most daylight conditions, and many users appreciate that the rear remains fully adjustable after installation.
- Several hands-on posts mention that a small dab of removable thread locker on the front-sight screws and centering the rear sight during initial installation reduces the need for repeat zeroing adjustments.
FAQs (Eagle Eye fiber optic sights – Ruger PC Carbine)
How difficult is installation?
Very easy. The front sight swaps with two T10 Torx screws and the rear slides in the dovetail with a set screw. Most users complete both swaps in under 10–15 minutes with only the included tools or a basic Torx driver set.
Which color combo works best?
Many shooters prefer a green front with red rear for high contrast and faster pickup, but included spare tubes let you test red/green combinations. Pick the combo that stands out best in your typical shooting light.
Will these sights change the rear sight’s adjustability?
No. The Eagle Eye rear sits on the same dovetail and retains the factory elevation function; windage is adjusted via the set screw. Expect to fire a few confirmation shots to fine-tune windage after installation.
Do they hold up to regular range use?
Community reports and product notes say they’re durable for normal use; TandemKross offers a lifetime guarantee. Using a small amount of removable thread locker on the front-sight screws and centering the rear during install helps long-term stability.
Will these work with an Upriser chassis or when using a red dot?
Yes. They function as iron sights regardless of chassis. They’re ideal as backup irons when running a red dot, or as primary sights for battery-free, low-maintenance setups. Confirm sight picture and height if you co-witness with an optic.
Any final installation tips?
Use a dab of blue Loctite (non-permanent) on the front sight screws, center the rear as best you can before tightening the set screw, and shoot a short group to confirm windage. Keep the spare fiber tube handy – it’s easy to swap if you prefer a different color later.