GunEx is an online marketplace focused on buying and selling firearms and related equipment across Canada. The platform brings together buyers and sellers through searchable listings, with options to browse newly posted items, explore popular searches, and connect directly with sellers. Its catalogue covers a broad range of firearms, including rifles, shotguns, handguns, antique and collectible models, and airguns, alongside firearm components, accessories, and tools.

Shoppers can also find shooting and range gear, archery equipment, optics, ammunition, reloading and muzzleloading supplies, targets, cases and storage, hunting blades, and books. Listings include item details, asking prices, and seller locations, helping users compare available products across Canadian communities. GunEx also provides a price guide and an FRT lookup, with a blog for additional content.

Users can create an account or sign in to participate in the marketplace. With both sale and wanted listings represented, GunEx serves people seeking specific equipment as well as those looking to offer firearms or accessories to other users