P345 rattle sound

Maybe someone who reads this could help. When shaken just slightly a very small rattle sound comes from what I guess is the area of the firing pin. Is this normal? Can be heard anytime, magazine in or out, safety engaged or not.. I assumed it was something to do with the firing pin block, or what ever the mechanism that disengages the firing pin in safe is called.

Any help?

Can't tell you what it is, but mine does it to and my gun functions flawlessly.

Good to know.. i had FTF 2-3 times when I first got the gun but that could have been the cheap ammo, and/or wasn't lubricated properly when I first got it. Ever since I've cleaned and lubricated it myself its been perfect.