Rugged, Reliable, Always-Deployed Relief Sighting
Lightweight, streamlined backup sights are built on the K.I.S.S. principle to ensure the tactical operator has a reliable, always-deployed sighting option if the main optic fails. One-piece design slides easily on a MIL-STD 1913 rail and clamps securely with a single machine screw. Rounded edges and recessed attachment screws resist snagging on other gear. A1.5 Rear Sight combines the windage adjustment drum of the original USGI A1 rear sight and a flip-up A2 aperture with large .190" peep for close range and .060" peep for long-range targeting. Compact profile doesn’t hang over the rear of the receiver to interfere with the shooter’s access to the charging handle.
AR-15, Issue:10, Page:060
Big Book Catalog, Issue:67, Page:062
SPECS: 6061 T6 aluminum, Type III hardcoat anodized, matte black. A1.5 Rear Sight -13⁄8" (3.5cm) long, 1¼" (3.2cm) wide, 15⁄8" (4.1cm) high from top of receiver rail to top of sight housing. 1.7 oz. (49g) weight. Front Sight - 1" (2.5cm) long, 1-1⁄8" (2.8cm) wide, 1¾" (4.5cm) high from top of receiver rail to top of sight housing. 1.1 oz. (30g) weight. For proper regulation with A1.5 or USGI A2-type rear sight, must be mounted on a handguard rail or railed gas block that is the same height as the receiver rail.