The Magpul MBUS 3 Rear Sight is a compact polymer backup sight with tool-less windage and aperture adjustment when a primary optic is unavailable. It folds to just 0.55" tall and 1.38" wide on an M1913 Picatinny rail to reduce snagging, then deploys quickly with a spring-loaded ambidextrous button. A rapid-select rotating aperture provides a wide or narrow view for close-range or longer-distance shooting. Standard AR sight height when deployed. Weighs 1.06 oz. Made in the USA.
Features
- Compact polymer MBUS 3 rear backup sight
- Attaches to M1913 Picatinny rails
- Stowed height: 0.55"
- Stowed width: 1.38"
- Weight: 1.06 oz
- Spring-loaded ambidextrous button for quick deployment
- Tool-less windage adjustment
- Rapid-select rotating aperture for wide or narrow sight picture
- Standard AR sight height when deployed
- Impact-resistant polymer construction
- Low-profile folded design helps reduce snagging
- Available in: Black, Flat Dark Earth and OD Green
- Made in the USA
