Magpul MBUS 3 Rear Sight – Black | Lightweight Polymer Backup Sight for AR Platforms

The Magpul MBUS 3 Rear Sight in Black represents the next generation of Magpul’s legendary Back-Up Sight lineup, seamlessly blending the proven reliability of the original MBUS with the refined aesthetics and performance of the MBUS Pro. Designed for AR-platform rifles, this low-profile backup sight delivers a premium sighting solution at a competitive price point.

Engineered for modern shooters who demand both functionality and minimal footprint, the MBUS 3 collapses to just 0.55″ in height and 1.38″ at its widest point, keeping your rail clean and unobstructed when not in use. At only 30 grams with hardware, it adds virtually no meaningful weight to your build.

Constructed from Magpul’s impact-resistant polymer, the MBUS 3 Rear Sight is built to withstand hard use in demanding environments while keeping weight to an absolute minimum. The spring-loaded, ambidextrous push-button deployment ensures fast, reliable sight acquisition whether you’re right- or left-handed. When deployed, the sight sits at standard AR height and features a windage-adjustable rapid-select aperture system, giving you quick adaptability for varied shooting conditions.

Key Features:
– Ultra-low folded profile: 0.55″ high, 1.38″ wide
– Lightweight: 30g with hardware
– Impact-resistant polymer construction
– Spring-loaded ambidextrous push-button deployment
– Standard AR-height when deployed
– Windage-adjustable rapid-select aperture
– Made in the USA

Order online today through VanTon Arms and take advantage of our fast nationwide shipping. Whether you’re building your first AR or upgrading an existing setup, the Magpul MBUS 3 Rear Sight is a trusted, field-proven choice backed by one of the most respected names in the industry.