The Magpul MBUS 3 Rear Sight, presented in Olive Drab Green (ODG), represents a calculated evolution within Magpul’s Back-Up Sight (MBUS) series. This iteration integrates established design principles from both the original MBUS and the MBUS Pro, yielding a compact, robust, and technically accurate aiming solution engineered for critical applications.
Constructed from impact-resistant polymer, the MBUS 3 Rear Sight optimizes durability while maintaining minimal mass. When stowed, it presents a profile of 0.44 inches in height and 1.15 inches at its widest point, ensuring minimal rail obstruction and seamless integration with existing optical systems. Its aesthetic aligns with the MBUS Pro, providing a professional presentation consistent with high-performance firearm accessories.
This rear sight is engineered for diverse applications, from precision rifle builds to personal defense firearms, functioning effectively as a primary or reliable contingency aiming device when tactical optics are deployed. Its robust design supports sustained use across varied operational environments, including shooting range equipment and demanding field conditions.
Key Features
Optimized Profile
The MBUS 3 Rear Sight features significantly reduced dimensions compared to previous iterations. This compact design ensures the sight remains unobtrusive when folded, mitigating interference with other mounted accessories or optical systems.
Robust Construction
Utilizing a proprietary impact-resistant polymer, this sight delivers exceptional resilience. Its material composition provides consistent performance and structural integrity across diverse environmental conditions and operational stressors.
Intuitive Deployment
An ambidextrous, spring-loaded push-button mechanism facilitates rapid deployment. This design prioritizes immediate access to the aiming solution, ensuring operational readiness when primary optics are compromised or unavailable.
System Integration
Upon deployment, the MBUS 3 Rear Sight establishes a standard AR-height sight picture. This critical specification ensures compatibility and a consistent sight plane when integrated with existing AR-platform iron sights or co-witnessed with various optical systems.
Adaptive Aperture
The sight incorporates a dual aperture system, providing the operator with adaptable sight picture selection for varying engagement distances and light conditions, thus optimizing target acquisition.
Technical Specifications
- Construction: Impact-resistant Polymer
- Color: Olive Drab Green (ODG)
- Folded Height: 0.44 inches
- Width (Widest Point): 1.15 inches
- Deployment Mechanism: Ambidextrous, spring-loaded push-button
- Deployed Sight Height: Standard AR-height
- Aperture System: Dual selectable aperture
