Gun makers will often make a special run of a non-cataloged rifles for a certain distributor. For example I own a Ruger M77 30-06 in stainless steel with a black walnut stock that was made for a local distributor (Never cataloged)
I have been looking for a "special run" Remington ADL synthetic in .257 Roberts that was also specially made for a PA distributor.
To answer your question...............This is common practice especially in my neck of the woods.
Encore28