What is the difference between a blank-firing handgun and the real thing?
There are two different things you are referring to. There are actually “blank rounds” that can be placed in any handgun and fired, allowing the action of the gun to cycle properly. Dangerous materials, along with a flash of gunpowder will still come out of the barrel, but it will not fire a bullet. These cartridges are crimped at the top and look distinctly different. Most guns that use these rounds (prop guns for movies, etc.) have been modified to reduce the amount of dangerous material coming out of the barrel. http://en.wikipedia.org/wiki/Blank_%28ca… A blank firing adapter is recommended for the use of blank rounds. http://en.wikipedia.org/wiki/Blank-firin… There are also specific guns that fire blanks, generally called starter guns due to their use in starting races.