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, but is specifically tailored to the AR15/M16 platform. 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.
Magpul MAG248-BLK MBUS Gen 2
Flip-Up Rear Sight AR-15 Polymer
Black
Each Shippable: No
Folding: Yes
Inner Pack Shippable: No
Master Pack Shippable: No
Model: MAG248-BLK
Options: Black
Prop 65 Item: No
Prop 65 Labeled: No
Prop 65 Settlement: No
Sight Color: Peep
Sight Firearm Fit: Rifle
Sight Material: Polymer
Sight Type: Rear
Specifications
| Base Configuration | Picatinny Rail |
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| Firearm Fit | AR-15 |
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| Firearm Type | AR-Platform |
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| Frame Color | Black |
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| Frame Material | Polymer |
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| Style | Folding |
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| Type | Rear |
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| Windage Adjustment | Yes |
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