【High-Impact Polymer. Tool-less Windage Adjustment. Dual Rotating Apertures. Spring-Loaded Deployment. NSN Certified.】

The Magpul MBUS® (Magpul Back-Up Sight) Rear is the ultimate partner for your front sight, offering a rugged yet lightweight solution for shooters who demand 100% reliability. Built from Magpul’s proven impact-resistant polymer, the Gen 2 Rear sight provides the essential features of professional backup iron sights without the weight or cost of traditional steel units.

Key Features & Tactical Benefits:

• 🌍 Proven Field Reliability: Backed by multiple NSN listings and used by professionals worldwide, the MBUS Gen 2 is a battle-tested platform designed to hold zero under hard operational use.
• ⚙️ Tool-less Windage Control: Features an easy-to-use windage-adjustable wheel. Make critical on-the-fly changes in the field without fumbling for tools or bullet tips, keeping your focus where it belongs—downrange.
• 🎯 Rapid-Select Dual Apertures: The secure rotating aperture window allows you to instantly switch between a wide field of view for close-quarters engagements or low-light situations, and a narrow aperture for precise long-range shooting.
• 🚀 Instant Spring-Loaded Deployment: Activated by a simple push-button, the sight flips up instantly with a positive tactile lock. Reliable detents ensure your windage and aperture settings stay exactly where you set them.
• 📐 Low-Profile, Snag-Free Design: Stows at a slim 0.51” height, keeping it out of the way of your primary optics while minimizing snag hazards. When deployed, it maintains standard AR sight height (1.42” above rail).