Description
Magpul MBUS 3 Front Sight MAG1166-BLK is a folding, flip-up backup front sight made from impact-resistant polymer. When folded, it sits at 0.47 high and weighs 25 grams with hardware. When deployed, it sits at standard AR-height and uses a spring-loaded mechanism with an ambidextrous push-button. The front post includes tool-less elevation adjustment.
Key features
- Impact-resistant polymer construction
- Spring-loaded flip-up deployment with ambidextrous push-button
- Tool-less elevation adjustment of the enhanced dual width front post
- Cannot be mounted to a railed gas block due to excess heat issues
Elevation adjustment
- 1 MOA per click (0.7 MOA per click with 20 in sight radius)
- 1 MOA (1.131 in/100 m) per click with a 14.5 in sight radius
- 0.7 MOA (0.820 in/100 m) per click with a 20 in sight radius




