Hawke Sport Optics 3-9x40 Airmax Riflescope, Matte Black with AMX Ranging Reticle, Adjustable Objective, 1" Main Tube Diameter Hawke Sport Optics Airmax 3-9x40 AO Riflescope - Lens Cloth - Elasticated Lens Covers - Hawke Sport Optics Lifetime Limited Warranty Maintube Diameter: 1" Mono-tube Magnification: 3-9x Objective Lens Diameter: 40mm Reticle: AMX