Magpul - MBUS® Sight – Rear, Various Colors

The MBUS (Magpul® Back-Up Sight) is a cost-effective, color injection-molded, folding back-up sight system. The dual aperture MBUS Rear Sight is windage adjustable and fits most 1913 Picatinny rail-equipped weapons, specifically optimized for the AR15/M16 platform.

Made in the USA, this sight is both lightweight and highly durable, thanks to its impact-resistant polymer construction. The MBUS Rear Sight can be quickly deployed with its spring-loaded flip-up mechanism, providing an easy-to-use solution for shooters in need of a reliable backup sighting system.

Features:

• Spring-Loaded Flip Up Sight: Easily activated from either side or by pressing the top for rapid deployment.

• Protective Wings: Shields dual, same-plane flip apertures, and allows the sight to be folded with either large or small aperture in position.
• Windage Adjustment: Detent knob adjusts windage easily and positively.

• Impact-Resistant Polymer Construction: Lightweight design resists operational abuse, maintaining durability in rugged conditions.

• Detent and Spring Pressure: Ensures the sight stays erect during use but allows unobstructed folding under impact.
• Clamps to Most MIL-STD-1913 Picatinny Rails: Provides the same height-over-bore as standard A2 irons.

Technical Specifications:

• Position: Rear
• Height Above Rail (Stowed): ~0.51 in.
• Length (Deployed): 1.5 in.
• Length (Stowed): 2.6 in.
• Weight (with Hardware): 1.3 oz.
• Center of Aperture to Top of Rail: 1.42 in.
• Windage Adjustment:

~0.7 MOA (0.754"/100m) per click with a 14.5" sight radius

~0.5 MOA (0.547"/100m) per click with a 20" sight radius