FAB Defense Polymer Flip Up Sight Set for AR-15

Click Here for Price
Out of Stock

Get a cool deal on this item for AT3’s Tax Season Sale! No discount code needed!

Join the waitlist to be emailed when this product becomes available

Orders will Ship within 1 Business Day
FAB Defense AG-43 Tactical Ergonomic Pistol Grip

FAB Defense AG-43 Tactical Ergonomic Pistol Grip for AR15/M4/M16 - Black


FAB Defense Flip-Up Front and Rear Sight

The FAB Defense polymer sight set is a lightweight, reliable backup sighting system for your AR-15. If your red dot sight runs out of power or breaks in the field, these sights spring into action and keep you in the fight. Both front and rear sights feature tool-free adjustment, and attach directly to any 1913 picatinny rail.

These sights are constructed from lightweight high-grade polymer, and can be used as a primary or secondary sighting system on your rifle.

FAB Defense FBS AR-15 Folding Front Back-Up Sight

Form, Function, and Precision

Both front and rear sights feature an “angel wing” shroud, which protects the front sight post and rear apertures. This matching shape allows you to align the sights faster, and get on target with a natural optical tunnel. They also feature a spring-locked deployment mechanism that won’t slip, break or deform.


  • Can be used as a primary or back-up sight
  • Ergonomic angel wing-shaped shrouds helps center the sight image, creating an 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
  • Dual rear sight apertures are 3mm for longer eye relief mounting, low light, and faster target acquisition; and 1.5mm for shorter eye relief mounting and greater accuracy
  • Instant spring-locked deployment mechanism will not slip, break or deform
  • No tools needed for easy, rapid elevation and windage adjustments, with positive detent locking
  • Made of extremely durable high-grade polymer and metal


  • Front Sight
    • Weight: 25 grams
    • Width: 32 mm
    • Height: 14 mm
    • Length: 52 mm
    • Height (open / deployed): 42 mm
    • Length (open / deployed): 30 mm
  • Rear Sight
    • Weight: 30 grams
    • Width: 32 mm
    • Height: 14 mm
    • Length: 52 mm
    • Height (open / deployed): 42 mm
    • Length (open / deployed): 30 mm

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Fab Defense Limited Lifetime Warranty

  • FAB DEFENSE warrants to the original end-user/customer that the products specified below are free from defects in materials and workmanship.
  • Subject to the provisions, conditions, and limitations set forth below, FAB DEFENSE will, at its sole discretion, either repair or replace any part of its products found and proven to be defective by reason of improper workmanship or materials or damage due to harsh service conditions.
  • FAB DEFENSE will provide repair parts or replacement products on an exchange basis, and such parts shall be either new or refurbished, provided they are functionally equivalent to new parts.
  • In the event that FAB DEFENSE is unable to repair or replace the defective product, it will refund the current value of the product at the time the warranty claim was made.
  • This limited lifetime warranty shall not cover any damage inflicted on this product as a result of improper installation, accident, abuse, misuse, natural disaster or modification. This lifetime warranty shall not apply to any product that had been sold as used/second-hand or that had been resold.
  • This limited lifetime warranty shall not extend to any product or damage to a product caused by failure to follow the instruction manual, through abuse or misuse or improper usage of the products.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.