--- title: "Magpul MBUS 3 Rear Backup Sight" description: "Rear backup sight with impact-resistant polymer construction, spring-loaded deployment, ambidextrous push-button, rapid-select aperture, and standard AR-height." canonical_url: "https://www.kygunco.com/product/magpul-mag1167-blk-mbus-3-sight-rear" meta: author: KYGUNCO "og:description": "Rear backup sight with impact-resistant polymer construction, spring-loaded deployment, ambidextrous push-button, rapid-select aperture, and standard AR-height." "og:image": "https://cdn.kygunco.com/assets/products/159443/thumbnail.jpg?v=1713453871" "og:image:height": "500" "og:image:width": "500" "og:title": "Magpul MBUS 3 Rear Backup Sight" --- > 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) / MGP-MAG1167-BLK ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/159443/main.jpg?v=1713453871) For illustration purposes only, this image may not be an exact representation of the product. # MAGPUL MBUS 3 Sight Rear The Magpul MBUS 3 Rear Sight is a compact, impact-resistant polymer backup sight designed for standard AR-height use when deployed. It features spring-loaded deployment with an ambidextrous push-button, a rapid-select aperture system, and a folded height of 0.44". Made in the USA. 5.0 ** ** ** ** ** [1 review](#reviews) $37.99 ** 4 interest-free payments of **$9.50** 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 Handled by our expert shippers in Bardstown, KY. Item # 159443 Style MGP-MAG1167-BLK UPC 840815132196 Condition New Manufacturer [Magpul](https://www.kygunco.com/brand/magpul) Weight 1 lb The next evolution in the MBUS (Magpul Back-Up Sight) line, the MBUS 3 incorporates the best features, strengths and value of the original MBUS and MBUS Pro Sights in a feature-packed back-up sight system. Significantly reduced in size from the MBUS, it sits at just 0.44” high when folded and 1.15” at its widest point. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Sight is constructed of our impact-resistant polymer, making it lightweight and extremely durable. Featuring the same spring-loaded technology as its predecessor, they can be deployed with an ambidextrous push-button. The MBUS 3 Rear Sight sits at standard AR-height when deployed and includes a rapid-select aperture system. Made in the USA. ** 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). 5.0 ** ** ** ** ** 1 review ** ** ** ** ** 1 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** Ralph Charlton Heights, WV Easy to attach and sturdy 11/21/2024 ** ** ** ** ** ## More from Magpul ```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/magpul-mag1167-blk-mbus-3-sight-rear#webpage","@type":"WebPage","description":"Rear backup sight with impact-resistant polymer construction, spring-loaded deployment, ambidextrous push-button, rapid-select aperture, and standard AR-height.","name":"Magpul MBUS 3 Rear 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