Any person or business selling firearms for profit must have a Federal Firearms License (FFL) .
People often buy "parts kits" (barrels, triggers, slides) which are not legally firearms, and then print the "frame" or "receiver" themselves to house those parts. 4. Safety Risks buy 3d printed gun
You generally won’t find 3D-printed guns for sale in a traditional store or online marketplace like eBay or Amazon. Any person or business selling firearms for profit
If you're looking to buy one to bypass a background check, you're entering illegal territory in many jurisdictions. If you're a hobbyist, it’s a steep learning curve involving mechanical engineering and strict adherence to local laws. slides) which are not legally firearms