Digital download of GCA Master Journal 1st Edition, Revised April 2011.
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Matrix of GLOCK Serial Numbers and Letter Prefixes
The Standard Production Matrix is an official list of all First Run GLOCK Pistols Shipped in the U.S. The Matrix includes pistol model, letter prefixes, generation, and total variations
GLOCK G20 History and Serial Numbers
In January 1990, eight 2nd generation "Checkered Grenade" frame "without locking block pin" pre-production prototype GLOCK G20 10mm pistols were exported to Glock Inc. USA for field-testing. The pre-production samples were stamped with serial prefix "J". The pistol was obviously larger in size, looking like an oversized GLOCK G17. The pistol weighed 27.68 oz. and had a 4.60 inch barrel. Also there were a few first run GLOCK G20 10mm and GLOCK G21 .45 Auto pistols "without locking block pin" and a smaller grip and magazine size. These pistols are very rare...
GLOCK G21 History and Serial Numbers
The GLOCK model G21 .45 Auto pistol is the same size pistol as the GLOCK G20 10mm pistol just a different caliber the venerable 45 ACP cartridge. The GLOCK G21 .45 Auto pistol was introduced a few months after the model G20 10mm pistol.
The GLOCK 21 .45 pistol like the G20 10mm pistol was highly requested by law enforcement and civilian...
Unusual Specialty Marked and Engraved Glocks
In June 1996, there were 500 matching 9mm sets produced consisting of the GLOCK G19 and GLOCK G26 and 1,500 matching .40 AUTO sets produced consisting of the GLOCK G23 and GLOCK G27. These sets were called "Defense Set." Mathematically, only 500 sets of 4-pistol sets exist. Realistically, it is believed less than 80 4-pistol sets were sold to specific dealers. It is possible these 80 dealers further broke up the sets. Accusport Corp. was unable to effectively sell the 2-pistol sets; thus, most were broken up with single pistols being sold individually to dealers across the country. The side of the slide is engraved with "Defense Set" 1 of 2 and 2 of 2 with no US suffix...