What kind of Gun is this? (Mystery SOLVED in 6 minutes)

I'm wondering what kind of gun this is and if you can even buy one. Please submit your best guess.

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How fast can we solve this mystery? - June 11th, 12:28 pm

UPDATE:

Centercut got it in 6 minutes and Michael also got it within 8 minutes. Michael's answer was technically "more right".

Hookster: Good try, that's what I would have guessed (Steyr)