Vortex Diamondback 3-9x40mm Shockproof Riflescope is a popular choice for all-around hunting. These Rifle scopes have pop-up dials that provide easy, precise adjustment of elevation and windage, making audible clicks easily and quickly counted. Vortex knows good hunting gets all the better with high quality optics. The Vortex Diamondback 3-9x40mm Riflescope has a durable 1-inch tube constructed of 6061 T6 aircraft-grade aluminum. These scopes are subjected to demanding factory testing under a force of 1000 G’s – 500 times and are purged with Argon gas to eliminate internal fogging. You can count on the Vortex Diamondback 3-9×40 Hunting Riflescope for smooth handling when the heat is on.