Over 30 months ago I flew with some firearms from Orlando Florida to Seattle . I declared them packed them as instructed and had the TSA check them before boarding . Unfortunately I also carried one magazine in my hand luggage and a pistol grip for a shotgun . The nice lady at security spotted the mag and went through my bag carefully . She had no idea what the weird piece of plastic was so I told her it what it was - I also told her I had no idea that such items were prohibited in carry on baggage as they are entirely harmless and of no use whatsoever for a hijacker . A permitted steel pen would be however .Well the wheels of justice turn slowly and I have now received an official warning from the TSA - with threats of dire consequences if I again do what they say was "extremely serious matter" but what I view as a minor infringement of their absurd nonsensical rules . Full text here - worth a read ! Transportation