Using guns in low-budget films is tough. You probably can't afford a real gun or a replica can you? Especially for more specialized guns. Fortunately, this video has the solution. It will show you how to make a really realistic sawed-off shotgun prop for cheap. You will need some carpentry skills and tools, but the gun looks so cool that even if you don't have those things now, you should probably invest in them. You'll be able to use them to make more props later anyway.