I decided that it was finally time to learn how to model my own assets instead of scouring the web for any that I could get my hands on for free, and so this is my first model, a western rifle. Honest opinions please:)
Looks really dang cool!
Though the texture on the back part of the gun (the wood texture) is repeating itself, you might want to take care of that. Other than that, the model and the textures are amazing!
I’d suggest you to import it into Unity and render it in realtime with shaders, it’ll definitely be better than expected! 
the stock looks a little too square in cross section imo. Might want to look into a more carved/smooth/rounded wooden stock.