EC-9—The 9mm TEC-9 assault pistol was originally developed by Interdynamics AB of Sweden and produced in the U.S. by F.I.E. of Florida. The original version, the KG-9, was easily converted to full auto and was subsequently reclassified as a machine gun by ATF in 1982. Soon after, the weapon was redesigned to sell as a semi-auto and reclassified the KG-99. Subsequently, a Hong Kong company bought the rights to the weapon from Interdynamics AB and a new company, Intratec USA, was formed in the United States to manufacture the weapon, now dubbed the TEC-9. In November of 1987, Intratec USA reorganized to become Intratec. Twelve and a half inches long, the lightweight TEC-9 comes with a 36-round magazine. The TEC-9M, a smaller version of the weapon, is 10.5 inches long. Both have threaded barrels so that they can accept silencers and barrel extensions. High impact plastic is used for the gun's receiver, magazine well, and pistol grip.[139] Promotional material for the guns describe them as being "high-spirited" and "weapons that are as tough as your toughest customers."[140] The TEC-9 retails for approximately $250.