I have no use for them.
A lot of people say the same thing but with the recent accidental shooting at gun shows there just might be a use for them. I agree that the only real safety in handling guns is the brain between our ears but there is a good use for them. On our range the guns must be cased or flagged if they are not in the owner’s control.
Chamber flags are cheap and show you’re a concerned and safe gun handler. Granted it doesn’t actually mean you’re safe but having seen holes in the metal roof of our range, there not such a bad idea. And it might stop one more incident from showing up in the liberal news about gun show shooting that make gun people look stupid.
The following are chamber flags
http://www.midwayusa.com/find?dimensionids=3929