SIIS Desert eagle

[Daveoc33]

I really don't know what to make of this. I thought it was a TM when I bought it but I was wrong. What makes it worse is it's an old discontinued gun with no mag! Looking at the side of the box it's based on a western arms desert eagle. So what do we think? Am I sat in a super rare gold mine of an airsoft gun or just a crap plastic Deagle with an erction?

A collector may have a spare western arms mag lying about already maybe. @BenJackson is this your kind of thing?