I'm still not convinced, you could have removed those parts of the model (or it's just reversed). I can still see lots of similarities, it looks as if it's the 3rd person model for CoD2, or FPSC ruined the smoothing as Charger suggested.
The texturing on the scope also looks the same as the Call of Duty image.
Same with the M1 Garand in your other thread, the mark on the side looks the same (attached), and the stock has a very similar shape. Could you post a picture of the model(s) in your modelling app on both sides?
If I'm still wrong, I'm sorry, but there's been lots of people here claiming someone else's work as their own, I hope you can understand my concern considering the similarities.