A Glock handgun with a Class 3 silencer
The Bureau of Alcohol, Tobacco, Firearms and Explosive (ATF) controls who can sell Class 3 firearms. These include machine guns, short barrel shotguns and rifles, suppressors and "any other weapons," such as pen guns and cane guns. Often referred to as NFA firearms, they are regulated and taxed under the National Firearms Act of 1934 (NFA), as amended in 1968 by Title 2 of the Gun Control Act.
With the proper paperwork and taxes filled out with the ATF, most states allow citizens to own these specialty weapons. Gun stores that sell Class 3 firearms must also have a special license with the federal agency.
Instructions
1. Send the NFA branch of the ATF an email at eps@atf.gov and ask for the Special (Occupational) Tax form.
2. Fill out the form, including your Federal Firearms License information, and send it into the ATF along with the required $500 fee.
3. Wait approximately 30 to 90 days for the license to arrive.