Magpul MBUS Pro Front Backup Sight – Black Steel (MAG275-BLK)

The Magpul MBUS Pro Front Backup Sight (MAG275-BLK) is a purpose-built, all-steel backup iron sight (BUIS) designed for serious AR-platform users who demand reliability without compromise. Constructed from case-hardened steel and finished with Melonite QPQ for exceptional resistance to wear and corrosion, this front sight delivers the strength and durability of a fixed sight in a low-profile, folding package.

Engineered for MIL-STD-1913 Picatinny and STANAG 4694 rail systems, the MBUS Pro Front mounts directly to receiver-height gas blocks and standard rail sections alike. When deployed, it locks to standard AR sight height with positive detents in both the up and down positions, ensuring a consistent, repeatable sight picture every time. When stowed, its ultra-low profile—just 0.43″ above the rail—keeps your optic’s field of view completely unobstructed.

Tool-free elevation adjustment via a positive-detent knob allows for quick, precise corrections in the field. The sight’s narrow width profile is compatible with most IR aiming lasers and tactical light installations, making it an ideal solution for professional and duty applications. Proudly Made in the U.S.A.

**Key Features:**
– All-steel construction with Melonite QPQ case-hardened finish
– Mounts to any MIL-STD-1913 Picatinny or STANAG 4694 rail, including receiver-height gas blocks
– Tool-free elevation adjustment knob with positive detents
– Positive detents in both deployed and stowed positions
– Standard AR sight height when deployed
– Narrow width compatible with most IR lasers and light installations

**Specifications:**
– Weight (w/ hardware): 1.5 oz.
– Height above rail (stowed): ~0.43″ max
– Length (stowed): 1.6″
– Color: Black
– Made in U.S.A.

Upgrade your backup sighting system with one of the most trusted names in the industry. Order the Magpul MBUS Pro Front Sight online today at VanTon Arms and enjoy competitive pricing with fast nationwide shipping.