Digital download of Master Journal 4th Edition revised May 2023.
After payment is processed you will be able to download a PDF copy.
Updated Matrix with Glock Serial Numbers and Letter Prefixes
With four new GLOCK models being introduced--GLOCK G47 MOS, GLOCK G20 Gen5, GLOCK G21 Gen5, commercial variant of the GLOCK G28--the Matrix has be updated. The Matrix is the official list of First Run GLOCK pistol serial numbers and letter prefixes in the U.S.
