You can purchase a gun magazine in another state as long as the firearms purchase is legal in both states and the dealer will ship the weapon to an FFL in your state. To buy a gun from an out-of-state firearms dealer, you must first find a Federal Firearms Licensee (FFL) willing to receive the shipment and conduct the transfer. Not all dealers are willing to do this, so it may take some shopping around to find one. Once you’ve found a willing dealer, you’ll need to contact them and provide them with your contact information and shipping address. The dealer will then process your order and ship the firearm to the FFL’s preferred address.
Once the firearm arrives at the FFL, you’ll need to fill out a 4473 form and undergo a background check. If you pass the background check, you’ll be able to take possession of the firearm.