I have waited fairly late to finish my homework.  This week feels as if it may go very slowly.  While I was writing my response, I had completely forgotten the name of the organization in question.  I had seen a documentary on YouTube a while back and knew that it would be perfect for my response.  After a couple different searches, typing "3D printed gun" in the search bar of YouTube revealed the video (http://www.youtube.com/watch?v=DconsfGsXyA).  I then fought the urge to fall asleep while typing long enough to cover the topic to my satisfaction.

Edit:

This is an actual gun from the Defense Distributed organization.  The green tinted portion of the gun is the 3D printed part.  This part is the part of the gun that is put under the most strain.  As long as this part holds up,  any other part of the gun could be made successfully.