GunExpos is a U.S.-focused directory and online community for gun owners, bringing together gun show listings, federally licensed firearms dealer information, and resources on state gun laws. Its database uses public Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) data and includes active and expired dealer listings. Visitors can search for gun shows by location or date, browse promoter schedules, and find nearby dealers by city or ZIP code. Tools include an FFL transfer finder and a side-by-side comparison of community-reported transfer fees.

GunExpos also offers a calendar with reminders, reviews of shows and dealers, saved-search alerts, and a private, encrypted gun vault for tracking collection details, values, and maintenance. Its community features include discussion forums, state boards, and a marketplace, with categories covering topics such as concealed carry, hunting, reloading, optics, and deals. For legal research, the site provides 50-state guides, a concealed-carry reciprocity map, and a travel planner. Promoters and dealers can claim or manage listings, respond to reviews, and share official updates.