You don’t need a background check to buy guns
This is also a lie. To buy a gun from any gun dealer, such as High Country Firearms or whether at a local store or at a gun show, a background check is required by law. Gun dealers cannot, under any circumstances, sell a gun to somebody without either an FBI background check or, in some states, proof that the buyer has a concealed carry permit, which itself requires an FBI background check.
The only exception to the background check rule is when an individual, who is not engaged in the business of firearms sales, wishes to sell his own personal firearm to another individual. This person-to-person sale does not require a background check (as of yet) because it is a non-commercial, non-dealer transaction founded on the fundamental right to engage in personal commerce.