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

Made in U.S.A.

Features:

• Impact resistant polymer construction provides light weight and resists operational abuse
• Spring-loaded flip up sight easily activated from either side or by pressing the top
• Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.
• Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons
• Protective wings shield the dual, same plane flip apertures
• Sight can still be folded with either large or small aperture in position
• Detent knob easily and positively adjusts windage

Specifications:

• Weight, w/ hardware: 1.3 oz.
• Height above rail, stowed: ~0.51 in.
• Center of aperture to top of rail: 1.42 in.
• Length, stowed: 2.6 in.
• Length, deployed: 1.5 in.

The Magpul MBUS Back-Up Folding Rear Sight offers a reliable and lightweight solution for those seeking durable sight options. Crafted from impact-resistant polymer, its low-profile design seamlessly integrates with most 1913 Picatinny rail-equipped firearms, particularly the AR15/M16 platform. This dual aperture sight features spring-loaded flip-up functionality for quick activation, along with a secure detent mechanism for stability under impact. Adjustable windage allows for precise alignment, while protective wings safeguard the apertures. Weighing just 1.3 ounces, it’s an essential addition to any firearm setup, ensuring you’re always prepared for action. Made in the U.S.A., quality is guaranteed.