MBUS Is UNMATCHED. You can't buy better back-up sights.
This video demonstrates the Magpul MBUS Pro and MBUS 3 backup iron sights, highlighting their low-profile design, durable construction (steel for Pro, polymer for 3), and user-friendly features like spring-loaded deployment and tool-less adjustments. The MBUS Pro is shown to be a robust, all-steel option, while the MBUS 3 offers a lighter, polymer alternative with easy adjustments. Both are presented as reliable standards for back-up sighting systems across various platforms.









