Using the National Institute of Justice body armor threat-level scale, this study classified 1,055 firearms confiscated by police officers from juveniles in St. Louis, Missouri, from 1992 to 1999. The authors found that for this city, the lethal capacity of juveniles’ firearms has remained relatively constant over time. Examination of the different types of firearms recovered also found that the sophistication of firearms used by juveniles did not increase throughout the 1990s. By disaggregating firearm types, the authors were able to demonstrate that the police are likely to confiscate relatively unsophisticated firearms from juveniles, such as Saturday night specials, .22 caliber and nonpowder weapons. In St. Louis, juveniles were very unlikely to have an assault weapon confiscated. More troubling, however, were the relatively high numbers of illegally sawed-off rifles and shotguns recovered from youths.