Where can I see a GAU-19 gatling gun, in person? Or a blueprint of same?

Okay, short and sweet…is there any place I can see a General Dynamics GAU-19 .50 cal gatling gun, in person, in the United States?

Failing that—would anyone know where I can find blueprints or decent diagrams of the same?

It’s for a modeling project—I’m actually not plotting to build a full sized copy, thankyouverymuch—but most of the existing photos I can find are too small, at odd angles, or are otherwise too obscured to get a decent look at the housing or motors, to say nothing if trying to make accurate measurements of them.

Can anyone help me out? And, uh, no maniacs, please.

This help at all?
http://sketchup.google.com/3dwarehouse/details?mid=1639ae190f0e05196df38a7dd1b448e6

…no dice, I’m afraid. :frowning: