It seems like one of my P99's sounded like that when it was new. You could only hear it when you pulled the trigger real slow and with out ear protection and then it was very slight... It does not do it any more...
Take it out and shoot it, then give it a though cleaning, it will go away... It's just new!
Take it out and shoot it, then give it a though cleaning, it will go away... It's just new!