The Magpul MBUS Front Sight delivers reliable backup sighting capability when primary optics fail or require removal. This spring-loaded flip-up sight mounts to any MIL-STD-1913 Picatinny rail and provides shooters with a dependable iron sight solution that stays out of the way until needed.
What Makes This Different
The MBUS (Magpul Back-Up Sight) system uses a spring-loaded mechanism that allows rapid deployment with a simple push of the sight post. Unlike fixed iron sights that can interfere with optics or create snag points, this low-profile design folds completely flat when not in use. The reinforced polymer construction weighs significantly less than steel alternatives while maintaining the strength needed for repeated use and impact resistance.
Key Features
- Spring-loaded flip-up mechanism deploys instantly under pressure
- Stealth Gray polymer construction resists corrosion and reduces weight
- MIL-STD-1913 Picatinny rail mounting system fits standard AR15/M16 platforms
- Low-profile folded position measures 0.44 inches high
- Protective wings shield the front sight post from damage
- Ambidextrous activation works for both right and left-handed shooters
- Tool-free windage adjustments allow field corrections
Field testing shows the MBUS front sight maintains zero through thousands of deployment cycles and withstands drops from 4 feet onto concrete without damage. The sight picture remains clear in bright sunlight and low-light conditions. Competition shooters appreciate the quick transition from magnified optics to iron sights during multi-stage matches, while duty users rely on the backup capability when electronic optics malfunction.
Technical Specs
- Material: Reinforced polymer construction
- Color: Stealth Gray finish
- Height: 1.15 inches deployed, 0.44 inches folded
- Weight: 1.2 ounces
- Mounting: MIL-STD-1913 Picatinny rail clamp
- Compatibility: AR15, M16, and other 5.56/.223 platforms
- Adjustment: Tool-free windage with detent clicks
- Country of Origin: Made in USA
The MAG247 MBUS front sight transforms any AR platform into a more versatile and reliable system. Professional users choose Magpul backup sights because they deploy when needed and disappear when they don't, maintaining the clean sight picture modern shooters demand.