The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight.
The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons.
Impact resistant polymer construction provides light weight and resists operational abuse
Finish/Color: Black
Includes Free Silicone Gun Cleaning Cloth
Manufacturer: Magpul Industries. Model: MBUS. Model: Generation 2. Type: Sight. Fit: Picatinny. Finish/Color: Black. Description: Rear. Manufacturer Part #: MAG248-BLK. PRODUCT DESCRIPTION: The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons. Features: Impact resistant polymer construction provides light weight and resists operational abuse; Spring-loaded flip up sight easily activated from either side or by pressing the top; Detent and spring pressure keeps sight erect but allows for unobstructed folding under impact, etc.; Clamps to MIL-STD-1913 Picatinny/STANAG 4694 receiver rail and provides the same height-over-bore as standard A2 irons; Protective wings shield the dual, same plane flip apertures; Sight can still be folded with either large or small aperture in position; Detent knob easily and positively adjusts windage. Specifications: MBUS - Rear Gen 2: Weight, w/ hardware: 1.3 oz. Height above rail, stowed: ~0.51 in. Center of aperture to top of rail: 1.42 in. Length, stowed: 2.6 in. Length, deployed: 1.5 in. Made in U.S.A.