Once again, i have made a prop from a video game i've never played. I like dead space. I just like the concept. The whole sci fi genre is by far my favorite a side from action and fantasy.
Step 1: Trace/draw
Draw out the front blaster part. The thing that looks like two half circles on a rectangle. Make it about four inches tall. Trace three of those after you have cut the first. Cut two lenghts of cardboard about 8 inches long. Cut a trigger type thing (see picture) also four inches long.