[1989ZR-1]

P99 FAQ serial numbers
Anyone know where the fourth serial number is hidden in the frame?

 

[uncut]

Ummmm
I am going to take a wild guess... as I am not 100% sure anymore... but I do belive it is in the recess for the exchangeable gripstrap.
Since I got the Dermagrip on my P99 I am not able to just take the gripstrap out and look... or I would

 

[Airfix]

Uncut is correct .... At least on my AG compact, the 4th serial number is on the frame covered by the backstrap.

 

[1989ZR-1]

Yep. You guys are right. I took off the backstrap, and there it is.