GLOCK - PERFECTION.......lol, just kidding... Was probably sitting around packed full of crud for a lomg time. Thake it to your LGS, let them do an ultrasonic cleaning. Best $20 you could spend on that gun. Gets all the crud out from every nook and cranny. When you get it back it will be bone dry. So make sure you get it oiled up good.
The Founders DID anticipate that arms technology would advance, that's why the 2nd amendment doesn't say "the right to keep and bear a musket".......