This Smith & Wesson 3913TSW is a semi-auto pistol which fires the 9mm round. It has a 3.5" barrel, an aluminum frame, and a stainless slide. This factory demo has an ambidextrous safety/decocker, low mount Novak 3-dot sights, and an under barrel rail. It has a "loaded chamber indicator” which consists of a small hole in the barrel at the top of the ejection port that will show if a piece of brass is present. Housing a single stack magazine, this pistol is slimmer making it easier to carry and conceal. It comes with one 8 round magazine, hard case, and manual.