Magpul MBUS Gen 2 Rear Sight for Picatinny Rails Flip-Up – Polymer, Flat Dark Earth (MAG248-FDE)

• MBUS Gen 2 back-up rear sight designed for rifles with 1913 Picatinny rails.
• Spring-loaded flip-up sight activates from either side or by pressing the top.
• Protective wings shield the dual same-plane flip apertures from impact damage.
• Detent knob allows positive windage adjustment for accurate rear sight alignment.
• Polymer construction provides lightweight durability and resistance to abuse.
• Detent and spring pressure keeps sight in place but folds under impact.

The Magpul Industries MBUS Back-Up Rear Sight Gen 2 is a flip-up rear rifle sight designed for aiming on Picatinny rail-equipped firearms.

The Magpul Industries MBUS Back-Up Rear Sight Gen 2 uses a spring-loaded mechanism for quick deployment and fits most 1913 Picatinny rail systems. This version features a Flat Dark Earth finish and a polymer construction that reduces weight while maintaining structural durability. It includes dual same-plane apertures protected by integrated wings and a detent knob for windage adjustment. The detent and spring pressure system keeps the sight stable while allowing it to fold when struck. This product is used for rear sighting in rifle setups and is specifically tailored to AR15 and M16 platforms. In typical use, the Magpul Industries MBUS Back-Up Rear Sight Gen 2 operates as a rear sight component within long gun sight configurations.