NcSTAR Top Mounted Fixed Rear Sight Black. The Nc star Detacheable Rear Sight is fully adjustable for elevation and windage by adjustable controls. In addition is it small enough youll be able to not only mount a red dot sight but HOLO sights as well. We offer complete line of NcSTAR Shooting Accessories. For our complete selection of products by NcSTAR on sale please visit our NcSTAR page. For more Shooting Accessories please visit our Shooting Accessories store section. Specifications for NcSTAR Top Mounted Fixed Iron Sight: Manufacturer: NcSTAR Color: Black Condition: New Sight Mounting Orientation: Top Mounted Sight Position: Rear Gun Model: AR-15 Gun Make: AR Platform Front Sight Color: REAR SIGHT ONLY Rear Sight Color: Black Deployable: No Fabric/Material: Aluminum & Steel Length: 2.7 in Gun Type: Rifle Mount Type: Picatinny Gun Rail: Picatinny Weight: 5.1 oz Attachment Type: Picatinny Features of NCStar MARDRS Ar15 Rear Sight: Ncstar warranty Made of Hard Anodized Aluminum Package Contents: Nc Star MARDRS Ar15 Detachable Rear Sight What firearm models does the manufacturer say NcSTAR Top Mounted Fixed Iron Sight is compatible with? The manufacturer says that NcSTAR Top Mounted Fixed Iron Sight is compatible with AR-15NcSTAR MARDRS: Top Mounted Fixed Rear Sight Black