Just in case you didn't know, it is illegal to try to bring a firearm on an airplane without properly storing it and checking a bag. So, no you cannot bring a gun on an airplane with a carry-on bag. You can bring a gun on an airplane though.
Even if your phone gets down to six percent battery life, you might want to keep on walking right past the charging hub at the airport. Here's how using a public charging station just might ruin the rest of your summer!