Midwest ERS Flip-Up Rear Sight

The Midwest Industries ERS Flip-Up Rear Sight delivers combat-proven accuracy and durability for AR-platform rifles in patrol, training, and operational environments. Built from 6061-T6 aluminum with mil-spec hard-coat anodizing, this A2-style dual aperture rear sight combines proven ergonomics with enhanced structural rigidity that exceeds industry standards for ruggedness and longevity.

The design centers on three critical operational advantages. Pivot ears are twice the thickness of competing sights, reducing flex under recoil and maintaining zero shift through extended firing cycles. The locking detent mechanism features double the engagement surface area, providing maximum holding strength when the sight is deployed or folded. Windage adjustment uses the same knob profile found on standard M16 and M4 rifle platforms, ensuring shooters can manipulate adjustments without removing gloves or changing hand position. All apertures remain fully protected from accidental damage during transport, storage, and dynamic movement.

This rear sight is engineered for operators who demand zero compromise in reliability. Whether mounted on duty rifles, service carbines, or precision trainers, it performs across temperature extremes and harsh environments without corrosion or mechanical failure. The backup-sight role makes durability non-negotiable—if primary optics fail, a flip-up rear provides immediate aiming capability. Field experience confirms the Midwest ERS holds zero reliably and operates smoothly through thousands of rounds. Made in the U.S.A. and backed by a lifetime warranty, this sight represents long-term value for serious rifle users.