【High-Impact Polymer. Spring-Loaded Quick Deployment. NSN Certified. Lightweight Durability. Includes Adjustment Tool.】

The Magpul MBUS® (Magpul Back-Up Sight) is the granddaddy of all backup sights, setting the global standard for reliability and value. Designed as a rugged, lightweight solution for those critical moments when your primary optic fails, the MBUS Gen 2 has been battle-tested by military, law enforcement, and civilian shooters worldwide.

Key Features & Tactical Benefits:

• 🌍 World-Renowned Reliability: As the best-selling front backup sight on the planet, the MBUS is a proven platform with multiple NSN listings. Its reputation for holding zero under operational abuse is unmatched in its class.
• 🚀 Ambidextrous Rapid Deployment: The spring-loaded mechanism is easily activated by pushing the top button or the side levers. Whether you use your thumb or a finger, the sight flips up instantly with a positive, tactile lock.
• 🛡️ Rugged Polymer Construction: Built from Magpul’s signature impact-resistant polymer, this sight is designed to flex under stress rather than break. The protective "wings" shield the front sight post from hard use and abrasive environments.
• ⚙️ Precise A2 Sight Height: Deploys to standard A2 sight height, ensuring across-the-board compatibility with standard AR backup sights. It includes a dedicated adjustment tool for elevation but is also compatible with any standard A2 tool.
• 📐 Snag-Free Low Profile: When stowed, the sight sits at a mere 0.51” tall, minimizing its footprint and reducing the potential for snagging on gear, clothing, or vegetation.