We are located in Tucson, AZ and Dripping Springs, Texas. As an 07 and SOT manufacturer, we mill pistol caliber AR15s engineered for 9mm, 40 cal, 357SIG, 45ACP and 10mm. Our products include lower receivers with a matching upper, BCGs, barrels, and hand guards. We engineered our lowers and uppers as designated pistol calibers. (less)