Magpul MBUS 3 Rear Sight – Black
The Magpul MBUS 3 Rear Sight represents the next evolution in the renowned MBUS (Magpul Back-Up Sight) series, combining the most refined features of the original MBUS and MBUS Pro models into a compact, lightweight, and highly durable backup sight system. Designed for shooters who demand speed, reliability, and precision, the MBUS 3 delivers professional-grade performance in a streamlined design.
Engineered for modern AR platforms, the MBUS 3 Rear Sight is significantly reduced in size—measuring just 0.55 inches high when folded, 1.38 inches wide, and weighing only 30 grams with hardware. While its sleek form draws inspiration from the MBUS Pro, it is constructed from impact-resistant polymer for exceptional strength and minimal weight. The spring-loaded ambidextrous push-button mechanism ensures rapid, one-handed deployment when every second counts.
When deployed, the MBUS 3 Rear Sight aligns at standard AR height and features a windage-adjustable, rapid-select aperture system for both close-quarters speed and long-range accuracy. Built to handle harsh conditions, it provides reliable zero retention and smooth operation across any shooting environment.
Features:
- Compact and lightweight profile with reduced dimensions
- Impact-resistant polymer construction for maximum durability
- Spring-loaded ambidextrous push-button for fast deployment
- Standard AR-height alignment when deployed
- Windage-adjustable rapid-select aperture for quick and precise aiming
- Compatible with most Picatinny-railed upper receivers
- Made in the USA
The Magpul MBUS 3 Rear Sight – Black is a low-profile, rugged, and dependable backup sight built for modern shooters who need consistent performance, lightweight design, and tactical reliability on every mission.
Product Information
| Manufacturer | Magpul |
|---|---|
| Platform | AR10 (DPMS), AR15, AR9 |
| Material | Polymer |
| Color | Black |
| Compatibility | Standard AR15 components, Standard DPMS AR10 Components |
| Weight | #N/A |
| Made in USA | Yes |













