Magpul MBUS 3 Front Sight – Black | Polymer AR Backup Sight

Upgrade your AR platform with the Magpul MBUS 3 Front Sight in Black — the latest evolution in Magpul’s legendary MBUS backup sight lineup. The MBUS 3 bridges the gap between the lightweight affordability of the original MBUS and the precision-inspired design of the MBUS Pro, delivering a feature-rich backup iron sight (BUIS) system at an exceptional value.

Engineered for low-profile performance, the MBUS 3 Front Sight measures just 0.47″ high when folded and 1.38″ at its widest point, weighing a mere 25 grams with hardware. Despite its compact footprint, it deploys instantly to standard AR height via a smooth, spring-loaded ambidextrous push-button — no fumbling, no tools, no hesitation.

Constructed from Magpul’s signature impact-resistant polymer, the MBUS 3 offers exceptional durability without the added weight of metal alternatives. The streamlined profile draws aesthetic inspiration from the MBUS Pro while maintaining the rugged reliability that has made the MBUS series a go-to choice for shooters nationwide.

Key Features:
• Low-profile folding design: 0.47″ folded height, 1.38″ width
• Weighs just 25 grams with hardware
• Spring-loaded, ambidextrous push-button deployment
• Deploys to standard AR height
• Tool-less elevation adjustment with dual-width enhanced front post
• Impact-resistant polymer construction
• Made in the USA

Whether you’re building a new AR or adding a reliable backup to your existing optic setup, the Magpul MBUS 3 Front Sight is a smart, affordable choice. Order online today at VanTon Arms and enjoy competitive pricing with fast nationwide shipping.