A recent Gunbroker auction brought this to mind as well as previous discussions on actual production dates for the earliest Glock 17 pistols.
Table of contents
- Current Issue Articles
- A History of Glock Generations
- Glock Generations: Detail and Feature Evolution
In fact, the very first Glock 19 pistols 1st generation were actually made from Glock 17 frames that were trimmed to accommodate the smaller slide and magazine.
Current Issue Articles
An apparent mold mark on the left front corner of the trigger guard was eventually used for a marking location indicating which frame was being produced. As has been described above, the main change that constitutes the generation 2 models is the retexturing of the grip surface. The models 22 and 23 are essentially the.
The models 20 and 21 were the first of the wide frame sizes made to accommodate the 10mm Auto and. All of these models are 2nd generation or later with both locking block pins in their design. Prior to reaching the end of the two-letter serial number ranges, a second line was added to the upper cartouche on the grip of the pistol which now read: Right around the time of the rollover from two-letter serial numbers to three-letter series, the internal parts of the pistol changed from being mostly black in color to silver.
Shortly after the change from two-letter to three-letter serial numbers, a second line was added to the lower cartouche on the grip with two additional patent numbers. The next internal upgrade in this approximate chronology was angled cuts made to the interior of the frame to relieve the back two corners where the locking piece sits. Without this modification, those two corners were prone to the initiation of vertical cracks in the polymer due to the repeated impact of the corners of the metal locking piece to the frame.
The relief cuts seemed to prevent the occurrence and could also be added to older models after the cracks had begun essentially removing the cracks in the process of making the cuts at their location.
A History of Glock Generations
As with other internal upgrades, because these were often done by the factory after production, their presence tells less about the age of the pistol than their absence. Hypothetically, were the people at Glock, Inc. Likewise, pistols returned to the factory as trade-in towards new models might also have similar upgrades. The list of generation 2 changes above can be described sequentially based on the assumption of the serial numbers being sequential although this may not strictly be true.
A more accurate description would be to say the changes listed here occurred during a watershed period during the middle of the second generation.
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The change from black internal parts to silver upgrade parts, the locking piece relief cuts, and the addition of a second line of text of the lower cartouche are all relatively contemporary changes roughly coinciding with the change from the two-letter to three-letter serial number range. Also in this time frame, the spring and guide rod assembly was upgraded to a one piece unit. A few years later, in , Glock began importing the model 24, which is essentially the 2nd generation equivalent of the 17L described earlier chambered in.
Some time later the angle of the right rear surface of the ejection port was changed from a 90 degree angle to something slightly larger. This change occurred between the introduction of the model 24 and the subcompact models 26 and 27 in 9mm and. What this means is that one may encounter a model 24 with the earlier 90 degree ejection port angle but all models 26 and later had the newer geometry.
The early model 26 and 27 pistols were the first to incorporate finger grooves in the front strap of the grip; however, these were not checkered like those that came before and after. It may be easiest to regard the models with the smooth front strap as generation 2 because they are like the proto type for the generation 3 changes and appeared prior to the addition of the accessory rail that fully defines generation 3 guns.
On the other hand, the large frame subcompact pistols, models 29 and 30 chambered in 10mm Auto and. Generation 3 Glock Features Generation 3 Glocks incorporated all of the feature changes listed above and changed very little in the years to come. A few early models of the. Additional models added after the switch to generation 3 included the 29 10mm , The models were later introduced in the.
Towards the later years of the 3rd generation, some special versions of existing models were introduced along side the standard models. Versions of several models described as having a Rich Texture Finish RTF were made that incorporated a distinct texture on all surfaces of the grip and cosmetically unique slide serrations. These were not commercially successful and subsequently produced in smaller numbers.
Glock Generations: Detail and Feature Evolution
One smaller subset of these models is the Glock 21 SF with the larger rail built into the frame instead of the usual single notch accessory rail. These were made in anticipation of design features requested for a new U. Army service pistol competition. This particular model was made with a new ambidextrous magazine release that was very different from the previous designs. This system captured the magazine with a thin paddle on the forward interior of the magazine well and would not function with older magazine designs. For this reason, all subsequent magazines were made with this additional forward cutout, although the military competition never happened and these design features have not been repeated on subsequent models.
This occurred before the arrival of the 4th generation designs or the U. At present, both 3rd and 4th generation pistols are being made in the U. The only technical difference between the two seems to be in the metal finish — the Tennifer process used in Austria has been replaced by a Melonite process for U. It remains to be seen if this difference will distinguish the two products in the open market. Detail and Feature Evolution.
Magazine floor plates are of two distinct types: The NFML left and FML right magazine floor plates are not interchangeable with each other due to a difference in width of their mounting points. The brief advent of the Glock 21 SF with ambidextrous magazine release required a new magazine design incorporating a cutout on the front face of the magazine wall.
All subsequent magazines have incorporated this feature even though the ambidextrous system was short lived. Aside from the Obama Surge imports there are no other proofed pistols imported by Glock Smyrna. G17Collector , Nov 14, Nov 14, 2. Here's a couple you can add: DJ Niner , Nov 14, Cynthia and G17Collector like this. Nov 14, 3. Nov 14, 4. Feb 10, 5. Can anyone find XLM gen 4 Glock TangoFoxtrot , Feb 10, Feb 10, 6. DarrellWA , Feb 10, Feb 10, 7. And here I, and others, merely thought that GLOCK serial numbers just went in letter and number order from the beginning at least usually.
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- Production date of your GLOCK.
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- Glock Generations: Detail and Feature Evolution.
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Later, of course, they changed to three letters, three numbers, and I guess now to four letters, three numbers. For a while, guns bound for the US had US at the end, which was part of the serial number. Feb 10, 8. Humper , Feb 10, Feb 10, 9. What does the hexagon mean? Feb 10, Is there a good reason to keep a couple digits secret? Feb 12, Some folks are paranoid for their serial number to be posted.
They think that someone is going to take their number and call in the gun as stolen. Or and this is my favorite The ATF watches these sights like a hawk to see what guns you have. Tinfoil hats are too tight I have receipts and or BOS for mine. If I thought there was a valid reason for anybody to have my numbers. I would give it to them. AdamRodgers and DarrellWA like this.
But they must not have run the full 1, as gen 1s.