Magpul - MBUS 3 Back-Up Front Sight

MBUS (Magpul Back-Up Sight) MAG1166-BLK incorporates the best features, strengths and value of our 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 0.47” high when folded, 1.38” at its widest point, and weighs a scant 25 grams with hardware. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Front 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.

Notable Features Include:

• Full featured spring loaded flip up sight
• Tool-less elevation adjustment and dual width enhanced front sight post
• 0.44" high when folded and 1.15" wide at widest point
• Standard AR-height when deployed
• Impact-resistant polymer construction
• Calmps to most MIL-STD-1913 picatinny rails