Designed by Paul Howe to allow the operator to accurately engage targets from 7 yds. to 100 yds. without moving hands to flip sights or have a second set of sights. The notch on top is used for targets at 7 yds. with a sight picture similar to pistol sights. The aperture is used for targets at greater distances and is used as a normal AR-15 rear sight.
– Rear Sight Only – Fits: AR-15/M16 A2 Housing – Material: Blued Steel – Finish: Matte Black
8.25 × 5 × 1.25 in
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XS Sight Systems XS CSAT Rear Sight – AR-15 Mil-Spec for sale.