Vortex Sport Cantilever AR-15 Riflescope Mount 34mm 1.50in Height Black. The 2" offset gets your head position and eye relief dialed while leaving plenty of real estate on your rail. Lightweight but with the power to stand up to recoil and the rigors of range day these mounts get you shooting faster and easier with performance you can believe in. Specifications for Vortex Sport Cantilever AR-15 34mm Riflescope Mount: Manufacturer: Vortex Gun Rail: Picatinny Fabric/Material: 6061 Aluminum Offset: 2 in Color: Black Base/Mount Type: Cantilever Ring mount Tube Diameter: 34 mm Ring Height: 1.50 in Gun Model: AR-15 Features of Vortex Sport Cantilever AR-15 34mm Riflescope Mount 2" Offset Type 2 Low-Glare Laser Engraved Torque Specs Picatinny Rail Compatible Package Contents: Vortex Sport Cantilever AR-15 34mm Riflescope Mount 1 Sport Cantilver Mount 2 Additional Torx T-25 Screws Torx T-25 Wrench What firearm models does the manufacturer say Vortex Sport Cantilever AR-15 34mm Riflescope Mount is compatible with? The manufacturer suggests that Vortex Sport Cantilever AR-15 34mm Riflescope Mount is compatible with AR-15Vortex SCM-34-150: Sport Cantilever AR-15 Riflescope Mount 34mm 1.50in Height Black