AT3 Tactical ARO Absolute Cowitness Cantilever Riser Mount Fastfire/Venom Compatible Black. With no bulky housing tubes or adjustment dials in the field of vision mounting a small red dot on an AR pattern rifle makes for a very pleasant shooting experience. The AT3 ARO Absolute Cowitness mount pushes the optic further forward on your rifle and raises the ARO red dot sight to absolute cowitness height with backup iron sights. This enables use with any of our AT3 magnifiers and many other accessories. This riser can also be used for for your Fastfire Venom or Docter red dot sights. Specifications for AT3 Tactical ARO Absolute Cowitness Cantilever Riser Mount: Manufacturer: AT3 Tactical Color: Black Finish: Anodized Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Fabric/Material: Aircraft Aluminum Red Dot Sights-Footprint: Docter Optic Cut: Not Applicable Hand: Ambidextrous Length: 1.9 in Width: 1.1 in Height: 1.41 in Weight: 1.1 oz Mount Type: Picatinny Gun Rail: Picatinny Features of AT3 Tactical ARO Absolute Cowitness Cantilever Riser Mount Mounts on any Picatinny rail Fastfire Compatible Mounting Pattern Includes Allen wrench Backed by the AT3 Lifetime Warranty Package Contents: AT3 Tactical ARO Absolute Cowitness Cantilever Riser Mount Mounting Screws Allen Wrench AT3 Tactical AT3-ARO-RM-83: ARO Absolute Cowitness Cantilever Riser Mount Fastfire/Venom Compatible Black