In Utah its LEGAL for personal firearm sales/purchases so technically you don't need to show "registration".
Short answer: With Utah being a Constitutional Carry state, you do not legally need to have a permit to conceal or open carry.
Non-resident proof of permit. If you reside in a state that recognizes the validity of the Utah CFP or has reciprocity with Utah, you must obtain a CFP or CCW from your home state and submit a copy of it with your application for a Utah permit.
The laws are a little more relaxed when buying rifles and shotguns, as eligible buyers only need to be 18 years old. Nonresident purchases are allowed if the buyer complies with the laws in their resident state. Legal immigrants can also buy rifles and shotguns in Utah.
Here are the top 5 best non-resident concealed carry permits that fit those criteria: Arizona. Utah. Virginia. Florida. New Hampshire.
Past pattern of behavior involving unlawful violence or threats of unlawful violence; Past participation in incidents involving unlawful violence or threats of unlawful violence; or. Conviction of any offense in violation of Utah Criminal / Weapons Code.
It is LEGAL for any individual who is at least 18 years old and not a prohibited person as defined in 76-10-503 or 18 U.S.C. 922(g) to have a fully loaded handgun anywhere in a vehicle including concealed on your body if it is your vehicle or you have consent from the owner of the vehicle.
You have to keep your gun out of sight. If someone can see your gun through your car window, that could be illegal. The law says it has to be hidden, usually in a locked container. If you are found guilty of carrying a gun openly in a public place, you could be charged under PC 26350.