No, you cannot ship firearms with UPS. UPS does not allow firearms or ammunition to be shipped through its services, and it is illegal to do so without the proper licenses and documentation.
If you need to ship a firearm, you can do so using a specialized firearms shipping service or a licensed firearms dealer. These services will have the necessary licenses and expertise to handle and transport firearms safely and legally. It is always best to check with the carrier and with local authorities before attempting to ship a firearm to ensure that you are following all applicable laws and regulations.