Midwest ERS Flip-up Rear Sight Black

Midwest Industries ERS Flip-up Rear Sight is an A2 style dual aperture sight with the same style windage knob found on the standard M-16 rifle. The sight is rugged and twice as thick as most rear sights. Made of 6061 aluminum and hard coat anodized. Automatically locks in the raised position with a locking detent. The locking detent has double the locking surface for maximum strength. Made in the USA. Color: Black