Magpul MBUS 3 Rear Flip-Up Sight ODG

Description

The Magpul MBUS 3 Rear Sight is a compact, polymer flip-up backup sight designed for AR-platform rifles. It provides a low-profile folded height and rapid-select rear aperture options while deploying to standard AR-height for co-witness or backup use with optics. The sight uses spring-loaded, ambidextrous push-button deployment and a windage-adjustable rear aperture system. Constructed of impact-resistant polymer, it is made in the USA and intended as a durable backup sighting solution for field and range use.

Key Specifications

• Model is MBUS 3.
• Type is a folding back-up rear sight.
• Fits AR-10/AR-15/M-4/M16/M110/SR-25 platforms.
• Rear and frame material is impact-resistant polymer.
• Finish color is Olive Drab Green.
• Deployment uses an ambidextrous push-button for rapid deployment.
• Windage adjustment is 0.5 MOA per click (14.5″ sight radius) or 0.4 MOA per click (20″ sight radius).
• Weight is 30 grams with hardware (per manufacturer description).
• When deployed, it sits at standard AR-height for co-witness compatibility.
• Mounts to a Picatinny rail.

Compact, lightweight, and purpose-built as a dependable backup to optics, the MBUS 3 Rear Sight combines a low-profile footprint with practical windage adjustment and ambidextrous deployment. Its polymer construction and streamlined design make it well suited for field use, training, and any setup where a reliable iron sight backup is required.