<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How can I buy a pistol without a serial number?
<|assistant|>
In most states it is legal to purchase a pistol without a serial number as long as you go through a licensed firearms dealer. Generally, such pistols must be sold as antique or collector's items, and the sale must comply with all applicable federal, state and local laws and regulations.