The new big brother of the M-223 lineup, the 4-16x42 with side focus parallax adjustment lays down a serious power range for your most extreme shooting. For long-range shooting speed and precision, this new riflescope helps you take full advantage of the performance of the .223 Remington round—from zero out to 600 yards. This M-223 4-16x42 features either the BDC 600 reticle or Nikoplex reticle and Rapid Action Turret. The high magnification range zoom makes it the ideal optic for heavy barrel AR15 platforms. Includes removable ARD objective lens glare eliminator.