DO NOT pay money for a so called “FFL kit” Most are out of date and incomplete. They sell you what you can DL or order from the ATF for free.
Everything you need to get your FFL is right on ATFE’s web pages.
Start here: ATF Online - Firearms - How To - Become An FFL
You can download the FFL application in PDF format, you can type it, save and print it;
Read through the application form to see if you legally qualify for a FFL, basically if you can legally purchase a gun, you qualify. Also you must have a place of business with set hours of operation. You must plan to make a profit.
You also need certificate of compliance form, you can’t save it, so when typed, print it out;
Here are the instructions for the FFL application;
ATF Online - Forms - ATF F 5310.12 Instructions
You also need to 2 fingerprint cards; you can order them from ATF here:
Distribution Center Order Form
When you drop off copy 3 of your FFL application to the CLEO (Chief Law Enforcement Officer), they may be able to do your prints. The CLEO is usually the county Sheriff or the city Police Chief.
While there ask what state laws/licenses apply to your new gun business.
In New York State for instance you need a state dealer’s license to sell handguns. You also need a EIN, sales tax number and a few other things varying on your town or city. Check with your local town or city to be sure your building can be used for business.
You will also need two 2x2 color pictures. I took my own with my web cam, resized and printed on Kodak paper.
Mail your completed application, certificate of compliance form, print cards, pictures and fee to:
Bureau of Alcohol, Tobacco, Firearms and Explosives
PO Box 409567
Atlanta, Georgia 30384-9567 USA
Expect a visit from an Industry Operations Investigator (IOI), who will inspect your place of business and go over regulations and paperwork with you. He or she will want proof that you can use your proposed place of business for business. Zoning/business license etc.
Another useful ATF dealer site, includes FFL newsletters etc;
ATF Online - Firearms - Industry
Lots of good downloadable references from ATF here:
ATF Online - Publications - Firearms
After you receive your FF you will need a Firearms Acquisition and Disposition record book. I bought mine here:
Gun Log Books / Firearms Acquisition and Disposition