eadmund's comment doesn't deserve all the hate. Carrying some sort of sharp object has been common since the stone age, and anyone who can't see the value in this has no imagination or life experience. What do you use to prepare food? If you're going carry-on only, your best bet is a small pair of scissors. 4 inch blade in USA, 2.36 (6 cm) in most of the rest of the world. In EU, pocketknives smaller than 6cm are allowed, and CATSA (Canada) was going to follow but USA said no. Americans hate knives and I have no idea why. Obviously, check the regulations yourself, don't just take my word for it.
If you're trying to reduce airline hassle, you kind of have to skip the handgun, mail it to yourself or get (borrow?) one at your destination. Whether or not you "need" one really depends on the purpose and location of your trip, but those details are too specific for this conversation. Also consider taking the train, since if you're carrying a handgun it's probably a domestic USA trip.
A tip for bringing back un-carryon-able items: Pack a simple and low bulk backpack inside your carry-on suitcase. If you decide to bring forbidden items back, check your carry-on suitcase and bring whatever you need for the plane in your backpack. This way you pay checked bag fees only in one direction and only if you really need to.
If you're trying to reduce airline hassle, you kind of have to skip the handgun, mail it to yourself or get (borrow?) one at your destination. Whether or not you "need" one really depends on the purpose and location of your trip, but those details are too specific for this conversation. Also consider taking the train, since if you're carrying a handgun it's probably a domestic USA trip.
A tip for bringing back un-carryon-able items: Pack a simple and low bulk backpack inside your carry-on suitcase. If you decide to bring forbidden items back, check your carry-on suitcase and bring whatever you need for the plane in your backpack. This way you pay checked bag fees only in one direction and only if you really need to.