that doesn't look like a real desert eagle, it could be an older mk but there is no branding on it and from the trigger and other parts i marked on previous pic i can say that this is not the current original desert eagle.

http://www.magnumresearch.com/docs/Magnum_catalog_2009.pdf on third page it the original magnum research desert eagle.
you can find better pics on google.

http://www.impactguns.com/store/SS-49466.html

http://images.google.com/images?hl=en&um=1&sa=1&q=magnum+research+desert+eagle&btnG=G%F6rselleri+ara&aq=f&oq=&start=0

anyway, it's still a great model.