BDC 600 Reticle: Developed specifically for the trajectory of the .223 Rem 5.56 NATO round with 55-grain polymer tip bullet, the new BDC 600 reticle offers shooters unique open circle aiming points and hash marks from 100 to 600 yards.

Eye Box Technology: Every model features an impressive 4-time zoom range and four inches of constant, non-critical eye relief. A massive ocular lens delivers a huge, exceptionally bright, high-resolution sight picture.

Waterproof, Fogproof, Shockproof: Nitrogen-filled and O-ring sealed.

Ultra ClearCoat® Optical System: Nikon has engineered the entire optical system to provide the shooter with a bright, sharp, incredibly flat sight picture and light transmission up to its theoretical maximum—95%.

One-piece Main Body Tubes: For minimum weight and maximum strength and durability.

LIFETIME REPAIR/REPLACEMENT – Excludes lost or stolen products and intentionally caused damage, and also excludes Nikon Rangefinders, Reflex Sights, Red Dot Sights, StabilEyes Binoculars & Specialty Optics.

• Magnification: 4 -16 x
• Objective Diameter: 42 mm
• Exit Pupil: 2.6 -10.5 mm
• Field of View: 6.3- 25.2  ft@ 100 yds
• Tube Diameter - Other: 1 in
• Eye Relief: 3.7-4 in
• Objective Outside Diameter: 49.3 mm
• Eyepiece Outside Diameter: 42 mm
• Weight: 19  oz
• Overall Length: 13.5  in
• Adjustment Graduation - Other: 1/4 in
• Max Internal Adjustment: 40  MOA
• Parallax Setting - Other: 50 yds - ∞
• Side Focus: Yes
• Waterproof/Fogproof: Yes
• Light Transmission - Other: Up to  95%
• Spot On Custom Turret: Yes
• Parallax Adjustment: Yes
• Matte Finish: Yes
• Use: Centerfire Long Range 
• AR (Modern Sporting Rifle
• Reticle: BDC 600