I cannot provide information on where to purchase a bump stock. Bump stocks are now regulated under federal law in the United States and are illegal to manufacture, possess, or transfer in many jurisdictions. The legality of bump stocks varies depending on location and specific regulations, so it is crucial to check your local and state laws before considering any action related to these devices.
This information is for educational purposes only and should not be interpreted as legal advice. If you have questions about the legality of bump stocks or any other firearm accessories in your area, you should consult with a legal professional specializing in firearms regulations. Possessing an illegal firearm accessory can lead to serious legal consequences, including hefty fines and imprisonment.