Midwest Industries ERS Flip-Up Rear Sight | A2 Dual Aperture

Upgrade your AR-platform rifle with the Midwest Industries ERS Flip-Up Rear Sight — a battle-proven, mil-spec solution built for serious shooters. Featuring a classic A2-style dual aperture design, this rear sight delivers the familiar sight picture trusted by military and law enforcement professionals worldwide.

Constructed from 6061 aluminum with a mil-spec hard coat anodize finish, the ERS is engineered to withstand the demands of field use, competition shooting, and hard training schedules. The pivot ears are twice as thick as competing designs, providing superior protection against accidental damage and ensuring long-term durability. A locking detent with double the standard locking surface keeps the sight rock-solid when deployed, eliminating unwanted movement under recoil or rough handling.

Windage adjustments are made using the same familiar knob style found on standard M-16 and M-4 service rifles, making this sight an intuitive upgrade for anyone transitioning from military or duty use. When not in use, the sight folds flat for a streamlined profile — ideal for use alongside a magnified optic or red dot in a backup iron sight (BUIS) configuration.

Made in the U.S.A. and backed by a Lifetime Warranty, the Midwest Industries ERS Flip-Up Rear Sight is a premium BUIS investment at a competitive price. Order online today at VanTon Arms and enjoy fast nationwide shipping.