The TEC-9 is a blowback-operated semi-automatic firearm, chambered in 9×19mm Parabellum, and classified by the US Bureau of Alcohol, Tobacco, Firearms and Explosives as a handgun. The TEC-9 is infamous for being easily converted to full-automatic fire by criminals.
Designed by Intratec, an American offshoot of Interdynamic AB, all three models of the firearm are referred to as the TEC-9, although only one model was sold under that name.
— In-game description
The TEC-9 is an automatic handgun featured in Battlefield Hardline, exclusive to the Criminal Professional. The weapon handles similarly to SMGs such as the UZI. It has the slowest rate of fire of all machine pistols at 600 rpm. This means that it cannot kill as quickly in close-quarters, but the TEC-9 is easier to control, making it a more reliable sidearm for medium range, and better at conserving ammunition.
- During the June Beta, the weapon was available as a gadget rather than a sidearm.
- During the same beta, the TEC-9 had higher rate of fire at 800 and higher recoil. This likely decreased to make the weapon distinct from the G18C, which performs similarly to the old TEC-9.
- Also during the beta, the TEC-9's weapon icon depicted it with a Heavy Barrel equipped.