"Smith & Wesson is one of many firearms manufacturers to produce a version of the AR-15, marketing more than a dozen models that range in price from about $700 to $2,000. The weapon is popular among collectors, military veterans and target shooters who say it is easy to handle and can be modified in numerous ways. Some soldiers call it “a Barbie doll for men” because it has a wide range of accessories and replacement parts, including different styles of barrels, stocks, magazines and scopes."