EDIT:
As of FEB 16 2007, I learned who the TRUE author of the soundtrack was. He recently made an account on NG and submitted his work. He contacted me concerning several things, one being credit distribution.
http://www.newgrounds.com /audio/view.php?id=186403 4
Sorry DJ B.a.r.
EDIT:
8/28/2010
Folks, this was the original weapon's instrumental piece to craze the internet. The Ballad of Blackmesa by Ronaldthecock, Battlefield 2 gun sounds by Serpento99, and CoD4 gun sounds by Serpento99 were all inspired by THIS flash, NOT the other way around. This is the ORIGINAL.
This submission predates all of their Youtube accounts, and the song, published in 2002 by DJ B.a.r., predates Youtube itself; Neither I, nor DJ B.a.r. could have possibly gotten the inspirations or idea from Youtube.