A Shooter's Guide Now you can become an AR-15 expert. Noted author and gunsmith Patrick Sweeney takes an inside look at an icon among American rifles. The AR-15 first became known to American shooters in the early 1960s. Since then is have become one of the most versatile rifles in the world, tackling everything from military and police operations to long-range target competitions. Sweeney's expertly written text and outstanding photography show you everything you need to know about understanding the AR-15 operating system and his dedicated group of testers honestly evaluate just about every rifle on the market. If there is something you want to know about an AR-15, you will find it here.