Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers
Would the polymer melt on a model such as dpms oracle has block Expert Answer

It depends on the rate of fire, but we highly recommend getting at least a front sight that is metal as to avoid any issues with the heat and a plastic front sight.

by Armando R., Gear Expert, May 24, 2019
Do these automatically “flip up” (spring loaded), by depressing the mechanism, as do Magpul sights? Manufacturer Answer

No. No springs of buttons to go bad. You flip it up or down by hand

by FAB Defense, Manufacturer, April 9, 2025
Customer Reviews
Helpful Positive Review
Not sure how tough they are but… by App 1969, Verified Owner, May 28, 2025
Not sure how tough they are but… Accurate and I like the fact they don’t pop up. They are silent as you push them into position. In a combat situation it may or may not matter. But if you’re trying to be stealthy a loud pop as you engage other brands...
Read More...
1/2 found this helpful
Helpful Positive Review
a good deal by Clay, July 7, 2020
Of course, not aluminum but polymer. Co-witness well with my sig optic. Seem to be at mechanical zero out of box. Works well on my 300blk pistol. Folded down they do not snag on the insides of my backpack.
3/3 found this helpful
Helpful Positive Review
These sights were an easy install and adjust without tools. They appear durable enough for most situations. Acquisition of sights is also easy enough.
1/1 found this helpful
Helpful Positive Review
NICE BACK UP SIGHTS by BIGMIKE, Verified Owner, April 26, 2016
I really like these under 100. bucks could ask for better flip sight in my opinion there way better than the MagPul nice solid sights, locks in my Picatinny rail nice and when you buy MagPul half the time you get knock offs, All the Israeli forces u...
Read More...
7/9 found this helpful
Helpful Positive Review
Great sights!! by Kenny, Verified Owner, May 24, 2024
People comment on the hardware included and how it doesn't fit right/too loose.....2.5mm HEX KEY/BIT!!...problem fixed!!!.... for the price these are AWSOME!!... I a few Mbus sets and these are just as good if not better, no tool needed for the front...
Read More...
3/3 found this helpful
Helpful Positive Review
Good looking sights that work by KC, Verified Owner, July 16, 2021
I personally have not had any issues with these sights and I've already purchased 3 different sets. They look great and function as intended. They're not spring activated flip up sights though but that's okay. Personal preference but I'll definitely ...
Read More...
4/4 found this helpful
Read All 44 Reviews
Blazin' Deal
12% OFF in the App
11% OFF
Free Two Day Shipping

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on select models of this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts - sorry about that. This offer won't last long, so don't miss out!
In Stock
5 Models Available

Show with deals only:

Blazin' Deal
Coupon Available
Free 2 Day Shipping
Color
All
Condition
All
Front Sight Color
All
Rear Sight Color
All
Condition Details
All
Condition Quality
All
Search

Product Info for FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights

Outfit your weapon with a complete sight system that can be used as a back-up or primary sighting option. All of the AR15 Accessories, Gun Parts, AR 15 Parts, AR 15 Iron Sights, Rifle Parts included in this FAB Defense kit are crafted with an instant spring-locked deployment mechanism that won't slip, deform, or break while in the field, providing unparalleled reliability when you depend on it. This FAB Defense Front and Rear Sight Set is perfect for any tactical operator or range enthusiast since there are no tools required for elevation adjustments, saving precious time and gear storage space. Each sight in this set is constructed out of incredibly durable high-grade polymer and metal for the best performance possible. Low profiles ensure they won't snag on any loose gear or clothing so that you can stay mobile without any interruptions. Line up precise shots with your rifle by installing this FAB Defense FRBS Flip-Up Sight Bundle.image

Specifications for FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights:

Manufacturer: FAB Defense
Sight Mounting Orientation: Top Mounted
Sight Position: Front and Rear
Gun Model: AR-15, M16, M4
Gun Make: AR Platform
Deployable: Yes
Fabric/Material: Polymer
Height: 2.01 in, 51 mm
Length: 139 mm, 5.47 in
Illumination Type: Non-Illuminated
Included Accessories: Standard
Illumination Color: None
Hand: Ambidextrous
Weight: 80 g, 0.176 lb
Width: 1.73 in, 44 mm
Mount Type: Picatinny

Features of FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights:

  • Can be used as a primary or back-up sight
  • Ergonomic angel-wing-shaped front shroud helps center the image with any rear sight, but when used with a matching FAB Defense RBS Rear Back-up Sight, it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition
  • Low folded profile is smooth and inconspicuous, and will not snag on gear, webbing, or brush
  • Instant spring-locked deployment mechanism will not slip, break or deform
  • No tools needed for easy, rapid elevation adjustments, with positive detent locking
  • Made of extremely durable high-grade polymer and metal

Package Contents:

  • FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights

FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights Orderable Models

List of Orderable Models

  • Open Box, Dealer Demo, FAB Defense Top Mounted Deployable Front and Rear Sight, OD Green, FX-FRBSKITG , MPN: FX-FRBSKITG-DMO , Code: 1S0-IRN-FRBS-FX-FRBSKITG-DMO-OB-A
  • Open Box, Dealer Demo, FAB Defense Top Mounted Deployable Front and Rear Sight, Flat Dark Earth, FX-FRBSKITT , MPN: FX-FRBSKITT-DMO , Code: 1S0-IRN-FRBS-FX-FRBSKITT-DMO-OB-A
  • FAB Defense Top Mounted Deployable Front and Rear Sight, OD Green, FX-FRBSKITG , MPN: fx-frbskitg , UPC: 7290105943255 , Code: 1S0-IRN-FRBS-FX-FRBSKITG
  • FAB Defense Top Mounted Deployable Front and Rear Sight, Flat Dark Earth, FX-FRBSKITT , MPN: fx-frbskitt , UPC: 7290111584909 , Code: 1S0-IRN-FRBS-FX-FRBSKITT
  • FAB Defense Top Mounted Deployable Front and Rear Sight, Black, FX-FRBSKIT , MPN: FX-FRBSKIT , UPC: 7290105943378 , Code: 1S0-IRN-FRBS-FX-FRBSKIT

FAB Defense Top Mounted Deployable Front and Rear Set of Flip-up Sights Unavailable & Discontinued Models

List of Unorderable Models

  • FAB Defense OPMOD Front And Rear Set Of Flip-Up Sights, Grey , MPN: FX-FRBSKIT-OPMOD Grey-KIT2023 , Code: 1S0-IRN-FRBS-FX-FRBSKIT-OPMOD-Grey-KIT2023
Compare (0)