This M-223 Riflescope has a 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. 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. For minimum weight and maximum strength and durability, it is made out of a one-piece main body tube.
Nikon has engineered the entire Ultra ClearCoat® optical system to provide the shooter with a bright, sharp, incredibly flat sight picture and light transmission up to its theoretical maximum—95%. Magnification reference numbers are viewable from the shooter’s position to offer smooth zoom control. And of course, this scope is nitrogen purged and o-ring sealed to be waterproof, fogproof, shockproof.