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Feyachi S37 Fiber Optic Flip Up Iron Sights with Red Green Dots, Tool-Free Adjustment, Rail Mount Rapid Transition Backup Sights

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$24.29

$ 11 .99 $11.99

In Stock

About this item

  • Fiber Optic Highlights: The Feyachi S37 Fibre Optic Iron Sights feature red and green fibre optics to improve visibility and target acquisition in a variety of lighting conditions, making aiming quick and easy, especially in low light
  • Flip Up Design: With a simple button press, the Feyachi S37 Flip Up Iron Sights easily fold down and can be manually flipped up when needed,no spring-assisted popping up. Comes with a hex wrench for easy installation and position adjustment, suitable for Picatinny and Weaver rails
  • Dual Aperture Options: The rear sight of the Feyachi S37 Fibre Optic Iron Sights features dual apertures, suitable for both long and close range shooting.The windage angle can be adjusted using the side knob
  • Sturdy Construction: The Feyachi S37 Fiber backup sights are crafted from a lightweight aluminum alloy with anodized finish. It has undergone rigorous oxidation and impact testing to ensure durability and wear resistance
  • Ease to use:The Feyachi S37 sights are easy to use, with the red dot on the front sight continuously adjustable by sliding the elevation knob. For precise adjustment of the green dot on the rear sight, simply use the windage knob to move it left or right as needed



Product Description

Feyachi S37 Fiber Optic Iron Sights
Feyachi S37 Fiber Optic Iron Sights

Why Choose Feyachi S37 Iron Sights?

The Feyachi S37 Fiber Optic Flip Up Iron Sights offer rapid target acquisition with a red front and green rear fiber optic design, ensuring clear visibility in all lighting conditions. With tool-free windage and elevation adjustments, precise aiming has never been easier. Made from aircraft-grade aluminum, they are lightweight, durable, and recoil-resistant. Compatible with Picatinny and Weaver rails, making them perfect for tactical, hunting

Feyachi S37 Fiber Optic Iron Sights
Feyachi S37 Fiber Optic Iron Sights

Aim Better At Your Target

Feyachi S37 Fiber Optic Iron Sights

Tool Free Windage and Elevation Adjustment

Both rear sight windage and front sight elevation can be easily adjusted using the knobs, with no tools required for quick and convenient customization.

Feyachi S37 Fiber Optic Flip Up Iron Sights

Precision and CQB Mode

Quickly switch between precision and CQB sight apertures for versatile shooting in different scenarios

Feyachi S37 Fiber Optic Iron Sights

Explore More Feyachi Iron Sights

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      Feyachi S54 45-Degree Iron Sight

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      Feyachi S17 Iron Sight

    • Fibre Optic Points

      Yes, red and green fiber optic dots

    • Fibre Optic Points

      Yes, red and green fiber optic dots

    • Fibre Optic Points

      NO

    • Need tools to adjust sight?

      No, tool-free adjustment

    • Need tools to adjust sight?

      No, tool-free adjustment

    • Need tools to adjust sight?

      No, tool-free adjustment


BigTim208
Reviewed in the United States on April 24, 2025
Okay iron sights but went with Magupul. Spend the extra money and get good ones.
Lawrence Alvarado
Reviewed in the United States on September 7, 2024
These backup sights are okay and will do the job for range sessions. The red/green dots are not visible when aiming and for my needs are useless. The front sight post has a set screw that locks it into place, that's a nice touch since it moves easily and without the locking screw vibration would cause it to turn out of adjustment. These sights will work nicely on an air rifle or air soft rifle. Both front and rear sights come in a plastic box and a hex wrench is included. Only windage adjustments on the rear sight and the front post is raised/lowered for elevation.
J. Barnes
Reviewed in the United States on August 22, 2024
The sites install easier than others of the same kind since the clamp part is on the side with the bolt instead of the opposite side. The flip-up can be a little difficult but the optics are bright and there are two different kinds of rear sight which is nice
Jonathan Elash
Reviewed in the United States on July 5, 2024
I've had a lot of good luck with Feyachi products, and I particularly like their BUIS for being an affordable option and I own several different ones. They come in a simple, but functional plastic case that holds them securely and is easy to store if need be. The construction is solid, they go on easily enough, and I particularly like the little fiber optic inserts they have since my eyes are old. The toolless adjustment on these is nice and functional as well. The Feyachi logo on them is small, and can be concealed easily if you're not a fan of it as many likely won't be.My only complaint (and it could just be the ones I got in particular) is that they're a bit stiff to deploy and retract out of the box. Not a big deal though to be honest.
S. Dayton
Reviewed in the United States on June 12, 2024
I had installed a "high end name brand" flip up sights on a home defense item I had acquired. It is meant for "closer" targets but does not come with built in iron sights. The "problem" with the "name brand" flip up sights was that they do not have fiber optics or any "material" that highlights the "tip" of the front sight or the "middle" of the back sight. (I am a "professional" (Just meaning I use my equipment actual situations and DEPEND on it daily. I also get paid to be proficient with my equipment.) in in this area so equipment I use needs to be reliable. The "name brand" flip ups are absolutely "reliable" and have great ergonomics. I am capable of "adding highlights" to the installed flip ups if I wanted to put in the time and expense of that, but when I saw these on my "vine" I figured I would give them a shot instead.These come well packaged and seem well designed and built. The back sight has two different set ups, one for "range" and one for "quick reaction". (The quick reaction back sight is absolutely sufficient and exactly what I was looking for personally.) The front sight has a different color "fiber optic" than the back sights so it is a sight picture that is easily acquired, which is excellent. The fiber optic inserts are good and do a decent job of gathering light. (There are other "types" of fiber optic sights that gather "more ambient light" due to an "open design" but with these being flip up sights that is NOT an option, so these do a good job of "light gathering" within the constrains required of a flip up design.They installed easily and seem very secure. (I do train extensively, so I will eventually be using this at the range where they will get "tested" on reliability and how they handle "duty use" (rough). When I "switch" sighting systems on a weapon I need to repeat qualification with it so I will have to do so with this prior to deploying it in my job. (Since I depend on EVERY part of my equipment "qualifying" isn't enough, I have to make sure it KEEPS it's "zero" for accuracy and doesn't break or fail in REAL WORLD USE! So, this product will be getting a "real world" workout prior to me "qualifying" with it because I need to know it is RELIABLE first!) Upon initial inspection I find the fit and build quality very good and anticipate this product to perform well. I will update this review IF IT DOESN'T perform perfectly in those tests as anything less than that would be unsatisfactory to me. If there is no update in the coming weeks this means the product performed "perfectly" in those tests.The price is so good for this product that it is the one thing that gave me "doubt" about its "reliability". At the time of review these flip up sights with fiber optic inserts are priced under $30 and are an excellent deal IMO. That "doubt" pretty much went away upon my receiving them and my initial inspection of the product and installation on another product I own. I was very happy and slightly surprised at the excellent quality of this product considering the price it sells at. Barring it "failing" my range tests (Which I do not expect, but WILL document if it does.) this product is an EXCELLENT buy IMO.
Julie
Reviewed in the United States on November 3, 2024
Iron sights are a great buy. They are very easy to install, and you can adjust with the tool provided. There was no problem looking down the middle just using the iron sights. The green dot was bright and pronounced. Excellent choice.
curt santner
Reviewed in the United States on November 24, 2024
These appear to be decently made and sturdy enough for general shooting. I like the Hi Viz dots on both front and rear sights.
MFamily2003
Reviewed in the United States on October 27, 2024
Cool little flip ups, easy to mount and adjust. Well priced, would buy another set.
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