Don't carry anything METAL on board. A couple of years ago I flew with a blade wrench for a Skil saw-- a flat piece of metal with a hex-shaped hole in one end of it, the other end rounded. Nothing sharp, no way it could be used as a weapon. I was traveling to my vacation home and had left the tool at my first home and simply forgot to put it in my checked baggage. You would have thought I was carrying a machine gun onto the plane. Two supervisors were called and the thing was confiscated, my ID taken and noted, and I was "let go" with a verbal warning not to try to carry anything of that sort again onto an aircraft.
Take a lesson from this-- nothing metal, no tool, nothing. Especially a weapon barrel or slide.
Take a lesson from this-- nothing metal, no tool, nothing. Especially a weapon barrel or slide.