Provided you follow all the laws, yes.
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You may ship to yourself. If shipping to someone else, across a state line, it must pass through a Federal Firearms License (FFL) holder in THEIR state. This may be a dealer, collector, etc. You may ship a firearm to a gunsmith or manufacturer for repair (they hold FFLs) and they may return it to you. Long guns (rifles/ shotguns may be mailed by US Mail. Handguns must be shipped by a common carrier, such as UPS or FedEx. Exception- DEALERS may use US Mail for handguns, private citizens may not. Please note this does not apply to muzzle loading firearms- they are not considered firearms under Federal law, and can be mailed or shipped without a FFL.
yes, some hunters use this to keep from flying with them. However, if you are shipping it across state lines, you are still required to have it received by an FFL dealer in that state, and fill out a Form 4473 for receiving it.
yes
No. You can however have a dealer in another state ship a handgun to a dealer in your state, then purchase the gun through the dealer in your state.
It depends. You can purchase a shotgun or rifle in any state, as long as that state's laws allow it. Handguns, you can only purchase within your home state. You can however purchase a handgun in another state and have the dealer or individual ship the gun to a dealer in your state and pick it up there.
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ASk a gun store how they ship.
Technically, no. According to federal law, you can only buy a handgun in the state where you reside. You can, however, pay for a gun in any state and then have the dealer ship it to a gun dealer in your state and pick it up there. The dealer in your state will charge a transfer fee.
It depends on what you mean. If you live in the U.S. you can only legally purchase a handgun in the state where you live. If you live in one state but want to purchase a handgun in another state, you have to have a licensed gun dealer in the other state ship the handgun to a licenesed gun dealer in your state and then purchase it through the dealer in your state.
if you were hungry
yes.
No. Each state has laws concerning this and crossing state lines could be a federal offense .
While being in a state, you are subject to that state's laws. If a state you are travelling through requires a permit, and you do not possess one, you are in violation of that state's law and are subject to the same punishments.