The AR-15/M-16 is the battle rifle of choice for the US Armed Forces. For more than 35 years, this lightweight, high velocity, extremely accurate rifle has helped keep the world safe and free. It shoots the .223 caliber cartridge known worldwide as the 5.56mm round. Right out of the box, this rifle is accurate and easy to shoot. However, with the addition of aftermarket parts and accessories, the AR-15/M-16 can be converted into a rifle that is capable of shooting 31 groups at 800 yards! In this program Master Gunsmith Larry Crow shows you complete disassembly and reassembly of the AR-15/M-16 rifle along with the modifications and adjustments one can do to make this rifle more accurate and reliable!