[Fraxinus]

I never understood the purpose of the “undetectable” firearms law anyway. The bullets are still detectable.

I always understood undetectable to be mean not detectable by most metal detectors which are magnetometers I believe. Tempered steel is used in most guns due to it being the cheapest material with the required properties. I do not know the magnetic properties of most ammo, but believe if you were willing to spend enough money you could build a gun that was both reliable and did not interact with a magnetic field.

[driftdiver]

I’ve read a few articles which indicated the law is based upon a falsehood. The only way the guns in question aren’t detectable is by setting the magnetometer at its least sensitive. A mode in which they are never used in the areas of concern.

None of which matters because its really not that hard to get a firearm in someplace. They make it aboard aircraft on a regular basis for example.