Wyoming dealers can't sell to CO residents?

[Jamnanc]

I may have missed posts on this, your welcome to flame away. My friend had business in WY, while he was there he found a hipoint carbine for cheap that he wanted to buy. There was a sign from the ATF that said "No firearms sales to residents of Colorado." I don't get it. There's a background check, so no getting around the UBC. I asked him to get a pic later today. Ill post it when I get it.