Magpul - MBUS® 3 Sight – Rear, Various Colors

The Magpul MBUS 3 Rear Sight combines the best features of the original MBUS and MBUS Pro Sights. It is designed to be a versatile and lightweight back-up sight system. The sight is significantly smaller than the original MBUS, measuring just 0.55 inches high when folded and 1.38 inches at its widest point, weighing only 30 grams with hardware. Constructed from durable, impact-resistant polymer, it is built to withstand operational abuse while maintaining a low-profile design. The sight also features ambidextrous push-button deployment, windage adjustment, and a rapid-select aperture system for precise sight alignment.

The MBUS 3 Rear Sight offers a more compact and lightweight design compared to its predecessors. It is significantly smaller and lighter, which makes it less obtrusive on your rifle. The use of Magpul’s impact-resistant polymer ensures it can handle rigorous use without adding unnecessary weight. Additionally, the sight features a rapid-select aperture system that allows for quick adjustments, enhancing its utility in dynamic shooting scenarios. These improvements make it a more practical choice for those seeking a reliable backup sight.

The MBUS 3 Rear Sight is particularly useful in scenarios where a primary optic might fail, such as in tactical or survival situations. It serves as a reliable backup option, ensuring that you maintain sight alignment even if your main optic is compromised. Its lightweight and compact design make it ideal for use in environments where mobility and quick deployment are essential. Whether you are in a high-stress tactical situation or a hunting expedition, the MBUS 3 provides the assurance of continued accuracy.

The MBUS 3 Rear Sight features a windage adjustment mechanism that allows for precise alignment. It offers approximately 0.5 MOA per click with a 14.5-inch sight radius and 0.4 MOA per click with a 20-inch sight radius. This level of adjustability ensures that you can fine-tune the sight to match your shooting needs, compensating for wind conditions or other environmental factors that might affect your shot accuracy.

The MBUS 3 Rear Sight is constructed from Magpul’s durable, impact-resistant polymer. This material choice ensures that the sight is both lightweight and capable of withstanding significant operational abuse. The polymer construction also contributes to the sight’s ability to maintain a low profile while providing the robustness needed for reliable performance in challenging conditions.

The MBUS 3 Rear Sight is designed to clamp securely to most MIL-STD-1913 Picatinny rails. This ensures compatibility with a wide range of AR platform components, including AR10, AR15, M4, M16, M110, and SR25 rifles. Its standard AR-height when deployed ensures consistent sight alignment with other standard AR sights, making it a seamless addition to your existing setup. For more on integrating sights and optics, explore our Optics, Sights & Lasers collection.

The MBUS 3 Rear Sight is available in Black, Flat Dark Earth, and OD Green. These color options allow users to choose a sight that best matches their firearm's aesthetic or operational environment. Whether you prefer a traditional black for a classic look, Flat Dark Earth for a desert or urban environment, or OD Green for forested settings, the MBUS 3 offers a choice that complements your needs.

Yes, the MBUS 3 Rear Sight can be effectively used alongside other tactical accessories. Its compact design ensures it does not interfere with other mounted equipment, such as optics or lights. When planning your tactical setup, consider the placement and compatibility of all components to ensure they function together without obstruction. For more on tactical gear integration, check out our Security: Optics & Sights collection.

Yes, the MBUS 3 Rear Sight is designed with ambidextrous push-button deployment. This feature makes it equally accessible and functional for both left-handed and right-handed users. The ambidextrous design ensures that all shooters can quickly and easily deploy the sight without having to adjust their grip or shooting stance, which is crucial in high-pressure situations.

The rapid-select aperture system on the MBUS 3 Rear Sight allows for quick and precise sight alignment. This system enables the user to switch between apertures rapidly, adapting to different shooting conditions or target distances. This flexibility is particularly beneficial in tactical scenarios where the ability to quickly adjust your sight picture can be the difference between success and failure. The system's design ensures that changes can be made efficiently, without taking your focus off the target.