Looking for rock solid stability and dead-on accuracy in a fixed sight? Advanced design, superior sighting and BattleReady™ toughness define Troy Industries Di-Optic Aperture (DOA®) fixed sights. Troy Industries Di-Optic Aperture (DOA) fixed sights gets the job done with an advanced design, superior sighting ability and BattleReady toughness. This permanent, rail-mounted alternative to a standard A2 sight allows limitless mounting options on all-length rails with a serrated ramp to eliminate glare.

These sights provide lightning fast target acquisition and are manufactured to exceed military specs. The optically engineered apertures center your eyes instantly and effortlessly providing a clearer target picture than with round apertures. The sights feature two settings, one for up to 300 meters and a second for up to 550 meters. This versatility makes the DOA ideal for military, law enforcement and home defense applications.

These advanced sights have been extensively field-tested.

Additional information

Weight 0.20 lbs

Rear Fixed BattleSight – Dioptic




  • A permanent rail mounted alternative to a standard A2 rear sight or carry handle

  • Extremely durable and reliable providing peace of mind. The most rugged fixed rear sight available

  • Fits all M4, M16, AR15, AR10 variants and other firearms that have a flat top receiver or removable carry handle

  • Faster target acquisition with Di-Optic Aperture

  • Increases accuracy to 600m

  • Quick install

  • American Sourced American Made


  • Design Sight is designed to work on same-plane rail systems only

  • Gas Block Will not work with a railed gas block that is higher or lower than the receiver

  • Install Front sight must be mounted at the same height plane as the rear sight

  • Zero Railed gas blocks that are lower than receiver height will not zero properly

  • Material Hardened aircraft aluminum

  • Components Stainless steel components

  • Finish Mil-spec hardcoat anodize