Magpul MBUS 3 Folding Rear Sight, Black

The Magpul MBUS 3 Rear Sight (brand part no. MAG1167-BLK) is the next evolution of Magpul’s Back-Up Sight line, combining the strengths of the original MBUS and the MBUS Pro into one feature-packed folding sight. Made by Magpul Industries, this rear sight is significantly smaller than the original MBUS, sitting at just 0.55 inches high when folded and 1.38 inches at its widest point, while weighing only 30 grams with hardware. Its impact-resistant polymer construction keeps it lightweight and durable, and the same spring-loaded technology as its predecessor lets it deploy with an ambidextrous push-button. When deployed, it sits at standard AR height and includes a windage-adjustable rapid-select aperture system. It’s made in the USA and built to be a dependable back-up when your primary optic goes down.

Key Specifications

• The sight stands just 0.55 inches tall when folded, keeping a low profile when not in use.
• At its widest point it measures 1.38 inches, a compact footprint on your top rail.
• It weighs only 30 grams with hardware, adding minimal weight to your rifle.
• Construction is impact-resistant polymer, keeping the sight lightweight yet durable.
• It deploys via a spring-loaded, ambidextrous push-button, usable from either side of the rifle.
• It sits at standard AR height when deployed, aligning with a typical AR-15 sight picture.
• It includes a windage-adjustable rapid-select aperture system for zeroing and quick aperture changes.
• It’s made in the USA.

Frequently Asked Questions

Can this sight be deployed from either side of the rifle? Yes, it uses an ambidextrous push-button so it can be deployed from either side.

Is this sight windage adjustable? Yes, it includes a windage-adjustable rapid-select aperture system.

Is the MBUS 3 made in the USA? Yes, Magpul manufactures the MBUS 3 in the USA.

Buy the Magpul MBUS 3 Rear Sight

Order the Magpul MBUS 3 Rear Sight from Schaefer Defense and add a dependable folding back-up to your rifle. Browse more of our gun sights, and our Lubbock, Texas team is happy to help with any fitment questions.