<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How can I buy a pistol without a serial number?
<|assistant|>
It is not possible to legally buy a pistol without a serial number. All pistols in the United States must have a unique serial number engraved on them, and the sale of a gun without a serial number would be in violation of the Gun Control Act of 1968.