Assembled with poly stock in 2014, or whenever, receiver made in 94?, as per the other 150 posts about markings. Read them.
I'm only going by what I see about dating receivers in those posts.
Were new receivers made in china to supply an easy boat load sell to buyers, who knows, not sure you will get a firm answer about that.
What kinda makes me wonder if it was china cloned in 2004 (or 14) is that there is no stamping on the heel of the receiver, like all other 199x to whatever year receivers that i've seen, and that ss stamp is out of sequence from other markings presented to different.
Hope you get a firm answer about your rifle, don't be disappointed if you don't, which will probably be the case.
if it shoots good, keep it, if not, it might be just another thing like they supply to north korea missiles that land in the sea.