In my humble opinion, The fair markup for standard production guns should be 10-15% over wholesale/distributor price.
On the other hand, NFA transferrable guns are marked up higher due to the fixed supply and every year the demand for transferrable machine guns are getting higher, if you live in a state that doesn't allow NFA weapons then it would be wise to purchase a second residence/vacation house in a machine gun friendly state.
On the other hand, NFA transferrable guns are marked up higher due to the fixed supply and every year the demand for transferrable machine guns are getting higher, if you live in a state that doesn't allow NFA weapons then it would be wise to purchase a second residence/vacation house in a machine gun friendly state.