[header] How to register a gun [title] Look up your state's gun laws online before purchasing a gun. [step] Depending on the state you live in, gun registration may or not be necessary. Visit your state's website to get information about its particular gun regulations. 
If registration is required, read up on the specific requirements for the application process in the section of the website dealing with licensing and regulatory affairs. [substeps] Hawaii and the district of columbia, for instance, require registration for all guns.