[mosin]

That's not a WELL, it's a Maruzen.

 

[mosin]

Look at the second picture, follow the barrel until it meets the point right below the scope, you can see a little nitch on the side, this nitch is something that all clones have forgotten to produce, which I find quite funny.

Either way, it pops out when he's out of ammo (Fun fact for you Maruzen owners) because every Maruzen has a mechanism that goes off or happens when you're out.

 

[mosin]

Well, that was my first thing, a few more things you can notice are these:
No seems in the stock
The overall texture of the stock

Of course these can be faked with a few applications of spraypaint with texture, however it's not very likely.

 

[mosin]

Like I said, those were things that could be fixed with Spraypaint and a little coverup, however they are just things you can tell.

I don't know though, for some reason I can always tell by eye or holding it if it's a real Maruzen.