Welcome to The United States of America!
If you are from outside of the United States, there are no laws banning you from operating firearms under the supervision of the legal owner/possessor of the firearms...
...so long as you have no felony convictions.
In the State of Colorado, there are no restrictions on caliber for non-residents. In other states such as New York, a foreign visitor may only be allowed the use of small calibers like .22 LR.
Just bring your passport or other legal identification.
We have a wide selection of pistols and rifles you can rent during your visit.
Ash from the UK. Awesome shooter!