What's the opposite of "prototype product"?

From an Information Technology perspective, what's the opposite of Proof of Concept (prototype)?

I'm looking for a better word which means "full-fledged version".


The opposite of a prototype — or a blueprint, or a sketch, or a mock-up, or a model — is a finished product or production version.


I would call it a turnkey project. Wikipedia explains this as:

a type of project that is constructed so that it could be sold to any buyer as a completed product.

But with full-fledged version they would certainly know what you are referring to.