Comments:
It will not.
However, you might inquire with your local AP service center to see if the rubber strap provided on the newer style regular production Offshores will fit the GP case (assuming the goal is to get a rubber strap on your GP, and not necessarily the Survivor pattern).
Strap
The new ROO (44) rubber strap fits the GP - I have it for mine.
Regarding the Survivor strap, I had the short version and was told it would fit although I gave it away before trying it on the GP.
The Survivor strap will not fit the GP case.
There is a slight difference in the space between the plots (about .5mm). I have had both models and straps in hand and they are not compatible. Likewise, you cannot place a GP strap on "standard" Offshore case such as a rubberclad, Safari, themes, etc. That excludes the new regular production pieces, which seem to be sized like the GP. As always I recommend confirming with your local AP service center.