Re:No they DON'T! (Score 1)

Have you ever heard of the glock? it's not exactly made of any metalic content.

I'm sorry, but you aren't any better at checking your facts.

The polymer parts of a Glock are molded around the metal ones - the frame, barrel, chamber, and slide are made of good old steel. As such, it is readily detectable by metal detectors and is easily identifiable as a pistol in an x-ray machine.