Another excellent book written by the factory Historion Roy Jinks is also shown and I have it as well and I highly suggest it as a Great choice. Here is a direct link to the Factory letter I spoke of and the Excellent reference book the Poster before me mentions that can be ordered from your computer and shipped to your front door. The Glock model numbers appeared sequentially although some models like the select fire 18 and the.380 models (25 and 28) are less common due to NFA and import restrictions. Some models are not as fast selling as others and although a reference book shows serial numbers and list's years when they shipped, it can only be considered a general idea of that model as I have seen some that shipped several years after these books show them to due to a less Popular status or demand for them. What is the serial number for a smith and Wesson model 19 serial. The Only True way to know when your gun was shipped from the factory is to apply for a Factory letter. I see another responder has Pointed out an excellent source of S&W serial numbers and it will provide many hours of good reading on all the different models they made and make.
