A lifelong firearm enthusiast, Sebastian Esquivel got hooked with an old browning .22 lever action when he was around 8 years old. His father and older brother got him interested in and taught him the basics of firearms. In 2016 he founded Daily Gun Dose, one of the most influential gun pages in the US. The same year, he partnered up with Samuel Vester to form Guntology and joined Ronin Armory in 2022. Sebastian has attended multiple pistol and rifle courses and is certified as an armorer, advanced Cerakote applicator, and instructor.