When you purchase a firearm from an online retailer (e.g., a commercial gun store's website), federal law requires a background check:
Mayors Against Illegal Guns Attacks Armslist - Business Insider buy a gun online without a background check
Buying a gun online without a background check is generally for sales involving licensed dealers but is a common occurrence through private sales in certain states. Federal and state laws create a distinction between commercial online retailers and peer-to-peer marketplaces. Online Sales from Licensed Dealers (FFL) When you purchase a firearm from an online retailer (e