The Glock pistol, sometimes referred to by the manufacturer as a Glock 'Safe Action' Pistol or colloquially as a Glock, is a series of polymer-framed, short recoil-operated, locked breech semi-automatic pistols designed and produced by Glock Ges.m.b.H., located in Deutsch-Wagram, Austria. How do I know when my device is manufactured Based on your device’s serial number, the manufacturing date is easy to determine: The first two digits of the serial number are related to the manufacture year of the device. For example, a Browning serial number can range in length from eight to ten characters, a Glock number is only five characters long. Typically the serial number can be found on the handle, slide, trigger guard or receiver. I've done trigger replacements, springs, rods, magazine upgrades, all the usual stuff to upgrade a factory stock gun. The gun also has a trigger disconnect safety and load indicator so it's a MA compliant gun. The serial number can be found in many different locations. I don't see any tab on Kahr's web site to enter a serial number to confirm date of manufacture. Check the date of manufacture with Mossberg from the serial number. Frequently Asked Questions Where is the serial number on a glock pistol? Could swear I read one recently about Kahr serial numbers/production dates that I was.