--- title: "FAB Defense Flip-Up Front Sight, Black" description: "Black flip-up front sight for 1913 Picatinny rails, featuring tool-free elevation adjustment, a spring-locked deployment mechanism, and a low folded profile." canonical_url: "https://www.kygunco.com/product/fab-defense-flip-up-front-sight-fits-picatinny-rails-black" meta: author: KYGUNCO "og:description": "Black flip-up front sight for 1913 Picatinny rails, featuring tool-free elevation adjustment, a spring-locked deployment mechanism, and a low folded profile." "og:image": "https://cdn.kygunco.com/assets/products/269290/thumbnail.jpg?v=1731358389" "og:image:height": "500" "og:image:width": "500" "og:title": "FAB Defense Flip-Up Front Sight, Black" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Sights, Lasers & Lights](https://www.kygunco.com/category/shooting/gun-parts/sights-lasers-and-lights) / [Gun Sights](https://www.kygunco.com/category/shooting/gun-parts/sights-lasers-and-lights/gun-sights) / FBD-FX-FBS ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/269290/main.jpg?v=1731358389) For illustration purposes only, this image may not be an exact representation of the product. # FAB DEFENSE Flip Up Front Sight fits Picatinny Rails Black The FAB Defense FBS is a low-profile flip-up front sight for 1913 Picatinny rails, including M4, AR-15, and M-16 platforms. Its elevation adjusts quickly without tools, while the spring-locked deployment mechanism allows primary or backup use. A durable polymer-and-metal construction and smooth folded profile support reliable handling around gear and brush. $33.99 ** 4 interest-free payments of **$8.50** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Fulfilled by a partner warehouse. ** Partner Fulfilled Item # 269290 Style FBD-FX-FBS UPC 7290105942005 Condition New Manufacturer [FAB Defense](https://www.kygunco.com/brand/fab-defense) Weight 2 lb FBS is an advanced, low-profile, durable, auxiliary front sight. It can be used with any rear sight, but has been designed to provide an extreme optical advantage. Its sight pin elevation is easily and quickly adjusted without tools. The FBS is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4/AR-15/M-16 platforms. The sight can be used as a primary or back-up sight and the ergonomic angel-wing-shaped front shroud helps center the image with any rear sight. The low folded profile is smooth and inconspicuous and will not snag on gear, webbing or brush. The sight is also made of extremely durable high-grade polymer and metal, and has an instant spring-locked deployment mechanism that will not slip, break or deform. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from FAB Defense ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/fab-defense-flip-up-front-sight-fits-picatinny-rails-black#webpage","@type":"WebPage","description":"Black flip-up front sight for 1913 Picatinny rails, featuring tool-free elevation adjustment, a spring-locked deployment mechanism, and a low folded profile.","name":"FAB Defense Flip-Up Front Sight, 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