Vortex's Diamondback scopes are loaded with features that put them in a class of their own! Single piece aircraft grade aluminum construction, full weatherproofing and fully multi-coated optics keep your scope functioning and your aim on target independent of what mother nature is doing. Get a Diamondback and get a scope for life.Read more
The 3-9x40 riflescope is ideal for big game, predator/varmint, muzzleloader, slug shotgun, and long range applications.
Dead Hold BDC Reticle
Customized hashmark design helps eliminate guesswork on holdover and windage corrections. Good for hunting and shooting at varying ranges where estimating holdover is a concern.
Fully Multi-Coated Lenses
Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Standard tube diameter for most American riflescopes.
Maximizes strength and waterproofness.
Premium grade of aluminum, valued for fatigue resistance.
Precision-Glide Erector System
Uses premium components in the zoom lens mechanism, ensuring smooth magnification changes under the harshest conditions.
Fast Focus Eyepiece
Allows quick and easy reticle focusing.
Low Capped Turrets
Are less susceptible to accidental impact damage.
Allow re-indexing of the turret housing to zero after sighting in the riflescope, generally requires use of a coin or wrench.
Optics are sealed with o-rings to prevent moisture, dust, and debris from getting inside the scope.
Barrels are filled with argon gas to inhibit internal fogging.
Lenses are locked in place, fore and aft, with machined locking rings to remain in perfect alignment and withstand recoil and impact.
Hard Anodized Finish
Hard-coat anodization is durable; the low-glare matte helps camouflage the shooter's position.