Glws… I no longer buy direct from GB. Their fees are just asinine
Buyer fee is 1% of the sale price, not including shipping.
What you are seeing as "fees" is whatever your state sales tax is, which is charged on the sale price plus shipping. Any gun store you shop at will charge tax.
Only way to avoid it is buy direct from an out of state dealer that will ship to you and not add your state sales tax. Then it's up to you if you report it year end on your state income tax.
