Features of this lightweight, semi-automatic rifle include a heavy barrel with chrome lining in both bore and chamber for optimum durability and accuracy. The barrel, and all steel components are manganese phosphate coated for complete protection against exterior corrosion or rust. The latest M16A2 rear sight system is incorporated offering dual flip up apertures: the short range aperture (0-200 meters) has a larger opening for greater light gathering as well as better moving target visibility; the smaller aperture is designed for maximum accuracy at longer ranges. Knobs adjust the sight for windage and elevation the elevation knob is graduated from 300 to 800 meters so that range adjustments may be made without the need to compensate for bullet drop. The receivers, of 7075T6 aircraft quality aluminum, are precision machined from forging for maximum strength. The upper receiver includes an integral cartridge case deflector and a last round bolt hold open feature to alert the shooter of an empty magazine. The ribbed front hand guard offers increased control and heat dissipation and is molded of polymer thermoset composite. Shipped with a 10 round magazine, carrying sling, and operating and safety instruction manual.