The Midwest Industries AR Flip Up Rear Sight deploys with the flick of a finger and locks in the up position with a sturdy ball-bearing detent. Release is via a push button. Flip up sights leave the field of view of your optic clear until the iron sights are required. The Midwest Industries flip up rear sight is machined from 6061 T-6 aluminum and hardcoat anodized in either matte Black, Dark Earth or OD Green. Both models give an A2 flip rear aperture with a large aperture for short range and poor light shooting and a small aperture for long range shooting. Zero will not alter when switching apertures. An A2 style windage adjustment knob gives positive 0.49 MoA click values in 20″ barrelled rifles and 0.65 MoA click values in carbines with 16″ barrels.
MCTAR-ERS – Emergency Rear Sight with protective “ears” to guard the aperture from accidental damage. Aperture has .060″ and .200″ diameter peep openings; same windage knob as standard A2 sight. 13⁄8″ (3.5cm) long, 13⁄8″ wide, 1¾” (4.4cm) high deployed, 1″ (2.5cm) high folded. 2.2 oz. (61g) weight.
MCTAR-SPLP – Low-profile design is less than ½” high when folded, yet provides full windage adjustment like the ERS model. Aperture has .070″ and .200″ diameter peeps 2¼” (5.7cm) long folded, 11⁄8″ (2.9cm) long deployed, 1¼” (3.2cm) wide, 15⁄8” (4cm) high deployed, 7⁄16″ (1.1cm) high folded. 1.5 oz. (41g) weight
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