NcStar MARDRS A2 Back-Up Rear Sight Dual Aperture for AR-15
- Detachable A2-style rear sight with dual aperture
- Compatible with Weaver and Picatinny rails
- Made from aluminum and steel
- Fixed A2 design with windage and elevation adjustment
- Length: 2.7 inches; Weight: 5.1 oz
- Platform: AR-15