An interesting idea, but kind of pointless. The gun is designed to look as a regular functioning knife. Why do I think it is pointless? Because generally guns have a deterring effect on people. If a thief sees a gun, 98% of the time, he will try to run if he's not armed. But with a knife... it gets complicated. The only practical use for this is to mask it from the authorities...Anyway...it's kinda neat! Enjoy!