I just checked the ATF website, and 300 Below, Inc of Decatur, IL IS
listed as having a Type 1 FFL.
We are good to ship!
I was unable to locate anything for CryoPro. There are several FFL licenses in Rogersville, MO, but none specifically for them unless it is listed under someone's name and not the company. Even so, I was unable to match up the mailing or premise address.
I have never done it, but I think it may have some merit. I think for the price it may be worth a try. I have run cryogenic brakes rotors on my vehicles for several years, and the treatment makes for a drastic difference in stopping power.
A gun is like a parachute: If you need one and don't have one, you won't be needing one again.