I recently bought a Glock 19 Gen 3 with 3 mags and no box. I was trying to determine the manufacture date and went to the Glock Research Project. I typed in the number on the side of the barrel "PDB953" and came up with no info on the date. Maybe I'm imputing the information wrong? Please let me know if you guys can give me some direction. Below is all the information I can pull off the Glock. On the top of the barrel there is the "9x19" marking. Nothing else. On the side of the barrel is: PDB953" followed by the Glock symbol followed by "1" and what looks like a forge mark. On the frame is under the barrel is "PDB953" Again, any help would be appreciated.