Troy Dioptic Apeture DOA Top Mounted Deployable Rear Sight for AR-15 Black. Constant illumination with tritium makes these AR 15 Parts from Troy Industries ideal for shooting at sunrise and sunset when most hunting happens. The folding function of Troy DOA Rear Battle Sights lets you flip them out of the way when your red dot or Rifle Scope is a better choice. Troy DOA Rear Tritium BattleSights are easy to install fit solidly and are a great choice for your AR. Specifications for Troy Dioptic Apeture DOA Top Mounted Deployable Iron Sight for AR-15: Manufacturer: Troy Color: Black Sight Mounting Orientation: Top Mounted Sight Position: Rear Gun Model: AR-15 Rear Sight Color: Black Deployable: Yes Fabric/Material: Aluminum Hand: Ambidextrous Mount Type: Picatinny Country of Origin: USA Attachment Type: Picatinny Features of Troy Dioptic Tritium Folding Sight: Faster target acquisition with unique Di-Optic Aperture (DOA) which centers your eye instantly and effortlessly. Provides clearer target picture. Features 2 settings one for up to 300 meters and a second for up to 500 meters. Increases accuracy. Quick install easy adjust. Fold down to fit below other optics when needed. 0.460-inch profile when folded. Protected adjustment wheel. Dual same plane aperture. Windage and elevation adjustments .50 MOA per click. Aircraft aluminum 6061 and stainless steel. Type III hard coat. Ideal for military law enforcement and home defense applications. Note: Sight is designed to work on same plane rail systems only. Will not work with a railed gas block that is higher or lower than the receiver. Limited Lifetime Warranty. Package Contents: Troy Dioptic Tritium Folding Sight What firearm models does the manufacturer say Troy Dioptic Apeture DOA Top Mounted Deployable Iron Sight for AR-15 is compatible with? The manufacturer suggests that Troy Dioptic Apeture DOA Top Mounted Deployable Iron Sight for AR-15 is compatible with AR-15Troy SSIG-FBS-TTBT-00: Dioptic Apeture DOA Top Mounted Deployable Rear Sight for AR-15 Black