The TEC-9 submachine gun is an Swedish-American made 9mm semi-automatic handgun. This gun is popular with American street gangs, international terrorists and the Columbine High School massacre (without the barrel shroud at Columbine). It is relatively low cost and easy to produce. It is known for having poor accuracy, but what it lacks in accuracy and reliability it more than makes up for with firepower and the ability to easily modify it to full auto.
Magazines range from 10 to 75 rounds, measuring to just over 1 foot long - weighing less than 4 pounds making it very compact given the high rate of fire. It is blow-back operated and manufactured by Intratec.