A

ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives)

organization

Ethan had a run-in with the ATF at age 16 when he was building a .50 caliber oxyhydrogen rifle.

Mentioned in 1 video

Ethan Thornton - This 22-Year-Old Built a .50 Cal Rifle Out of Home Depot Parts | SRS #286

Ethan Thornton - This 22-Year-Old Built a .50 Cal Rifle Out of Home Depot Parts | SRS #286

Shawn Ryan Show

Ethan had a run-in with the ATF at age 16 when he was building a .50 caliber oxyhydrogen rifle.