Differences between Gen 3 and Gen 4 pistols

Glock logoAs for the differences between Gen 3 and Gen 4 pistols, as a generalization:

Gen 4 pistols have the different grip texture (known technically as “RTF3”), dual spring Recoil Spring Assembly unit (with frame and slide changes to accommodate), larger & reversible mag catch (not ambidextrous as some claim), and four back straps. Gen4 guns are built on the SF frame, resulting in a shorter trigger reach and shorter heel depth than the Gen 3 guns (about 2mm). The SF frames also use a smaller trigger housing mechanism. Gen 4 guns use a “dot” connector instead of the Gen 3 unmarked connector. Gen 4 guns have an updated trigger bar. All Gen 4 guns come with 3 magazines, whereas only the blue label Gen 3 guns came with 3 – white and red label come with 2.

Some Gen 3 models are available in a factory threaded barrel version (to support compensators and silencers). Some Gen 3 and 4 models are available in a factory ported version – although not all models are available in both generations. Some Gen 4 pistols are available in a MOS (“Modular Optic System”) version to support optics. Some Gen 4 pistols are available in a few more factory colors (including Gray, and BFG) than Gen 3 pistols. Both are available in black, FDE, and OD. These are all color molded frames with black slides (the only color Glock makes), trigger, mag catch, slide lock, and slide stop lever. Gen 4 includes color molded back straps. Some Gen 4 guns are available with front slide serrations and extended controls (mag catch, slide stop lever) as well as steel sights.

From a maintenance perspective, the recommended replacement threshold for the Gen 3 recoil spring assembly (RSA) is every 2500-3000 rounds. For the Gen 4, it jumps to every 5000 rounds.

Some will point to the fact that the Gen 3 has been around for years, and thus, is proven. Well, so has the Gen 4. Production on Gen 4 guns began in 2009. I think that’s sufficient time to be considered “proven”.

Some will say the “finish” is different. Glock made a change to the metal treatment process (which is applied to the bare metal, before the finish), starting in 2007 (and that transition was completed in 2010). That original process was known as “Tenifer”. The change to the newer Melonite process caused subsequent guns to have a finish with a slightly different appearance, but a higher HRc rating, which is good. It’s not about the generation of the gun that dictates the finish, but WHEN the gun was manufactured. A Gen 3 gun and a Gen 4 gun both manufactured on the same day will have the same finish.

To see more technical data for each specific model, including both current Gen 3 and Gen 4, see https://us.glock.com/products/all.

The Wish List

Glock logoThis is a running list of things I’m actively looking for. This is a living post and will be updated as needed. If you have any of these items and are looking to part with them, or know where I can obtain them, please contact me. All firearms transactions MUST go through an FFL.

Note: Items that are strike-through are items I’ve purchased but have not yet received.

Pistols

These are publicly released pistols that I’m actively looking for. Many are fairly hard to find. I prefer those pistols with original case, including matching case label, and all case contents (loader, brush, rod, lock, correct manual/packet, spent casing, etc.). But I’m willing to discuss any opportunity.

Gen 1

  1. Glock 17 Gen 1 marked “KS ABC” on the slide

Gen 2

  1. Glock 17L Gen 2 ported
  2. Glock 20C Gen 2
  3. Glock 20CC Gen 2 – must include the original case with matching label
  4. Glock 21C Gen 2
  5. Glock 21CC Gen 2 – must include the original case with matching label
  6. Glock 22CC Gen 2 – must include the original case with matching label
  7. Glock 23CC Gen 2 – must include the original case with matching label
  8. Glock 29 Gen 2
  9. Glock 30 Gen 2
  10. Glock 31 Gen 2
  11. Glock 31CC Gen 2 – must include the original case with matching label
  12. Glock 32 Gen 2
  13. Glock 32CC Gen 2 – must include the original case with matching label
  14. Glock 34 Gen 2
  15. Glock P9M Gen 2

Gen 2.5

  1. Glock 20 Gen 2.5
  2. Glock 20CC Gen 2.5 – must include the original case with matching label
  3. Glock 21C Gen 2.5
  4. Glock 29 Gen 2.5

Gen 3

  1. Glock 35C Gen 3 – even though there were only 2 of these made, and they’re both owned by a collector I know, I can always wish, right?

RTF2

  1. Glock 22C RTF2
  2. Glock 30 RTF2 FDE – yes, I know only 1 was made
  3. Glock 30SF RTF2 FDE – only one exists
  4. Glock 31 RTF2 (no gills)
  5. Glock 32 RTF2 (no gills)

Gen 4

  1. Glock 17 MOS Gen 4 (PG1750203MOS or UG1750203MOS)
  2. Glock 17 TB Gen 4
  3. Glock 17 MOS TB Gen 4
  4. Glock 19 TB Gen 4
  5. Glock 19 MOS TB Gen 4 (UG1950203MOSTB)

Crossover

  1. Glock 45 Gen 5 MOS in gray (PA455S203MOSGF)
  2. Glock 45 Gen 5 TB MOS (apparently European only)

Gen 5

  1. Glock 17 Gen 5 built for special forces, milled specifically for the Delta Point Pro optic (PA175A202MOS3)
  2. Glock 17 Gen 5 TB (factory threaded barrel and suppressor sights)
  3. Glock 17 Gen 5 TB MOS
  4. Glock 19 Gen 5 (PA195S203) – front serrations
  5. Glock 19 Gen 5 TB MOS
  6. Glock 23 Gen 5 (PA235S203)
  7. Glock 27 Gen 5 (PA275S201)
  8. Glock 34 Gen 5 (PA343S103MOS) – front serrations
  9. Glock 35 Gen 5 MOS (PA353S103MOS)
  10. Glock 47 Gen 5 CBP/USSS SOD

M pistols

  1. Glock 17M FDE – issued to FBI HRT
  2. Glock 17M OD – issued to FBI regional SWAT
  3. Glock 19M FDE – issued to FBI HRT

Slimline pistols

  1. Glock 43X Rail MOS (PX4350201FRMOS)
  2. Glock 48 Rail MOS (PA4850201FRMOS)

Misc Pistols including imports

  1. Glock original P80 pistol
  2. Glock 17 Gen 1 chambered in 9×21 IMI
  3. Glock 17 Gen 1 chambered in 9×21 IMI with “CAT. 5180” stamp
  4. Glock 17 Gen 2 chambered in 9×21 IMI with “CAT. 5180” stamp
  5. Glock 17 Gen 3 chambered in 9×21 IMI with “CAT. 5180” stamp
  6. Glock 17 Gen 3 chambered in 9×21 IMI without “CAT. 5180” stamp (just caliber)
  7. Glock 19 Gen 3 chambered in 9×21 IMI
  8. Glock 26 Gen 3 chambered in 9×21 IMI
  9. Glock 34SC (“Sport Competition”) Gen 3 chambered in 9×21 with “CAT 10861” stamp – sold in Italy
  10. Glock P9M Gen 3 used by Germany’s GSG9
  11. P9A1 used by the Kampfschwimmers of the Bundeswehr
  12. Glock 17 Gen 4 chambered in 9×21 IMI with “CAT. 5180” stamp
  13. Glock 17 Gen 4 chambered in 9×21 IMI without “CAT. 5180” stamp (just caliber)
  14. Glock 17C Gen 4 chambered in 9×21 IMI
  15. Glock 17 FTO Gen 4 chambered in 9×21 IMI (120mm-long threaded barrel)
  16. Glock 17 LCS Gen 4 chambered in 9×21 IMI (milled slide cuts)
  17. Glock 19 Gen 4 chambered in 9×21 IMI
  18. Glock 19 Gen 4 MOS chambered in 9×21 IMI
  19. Glock 19C Gen 4 chambered in 9×21 IMI
  20. Glock 19 FTO Gen 4 chambered in 9×21 IMI (threaded barrel)
  21. Glock 21C Gen 4 (European only)
  22. Glock 26 Gen 4 chambered in 9×21 IMI
  23. Glock 34 Gen 4 chambered in 9×21 IMI
  24. Glock 31C Gen 4 (European only)
  25. Glock 19X chambered in 9×21 IMI
  26. Glock 45 Gen 5 chambered in 9×21 IMI
  27. Glock 17 Gen 5 chambered in 9×21 IMI
  28. Glock 19 Gen 5 chambered in 9×21 IMI
  29. Glock 22 Gen 5 with manual safety (Brazil only)
  30. Glock 26 Gen 5 chambered in 9×21 IMI
  31. Glock 26NZ Gen 5 – made for New Zealand with a longer barrel
  32. Glock 34 Gen 5 MOS FS chambered in 9×21 IMI
  33. Glock 43 chambered in 9×21 IMI
  34. Glock 43X chambered in 9×21 IMI
  35. Glock 43X Rail (non-MOS version – Europe only)
  36. Glock 43X Rail chambered in 9×21 IMI
  37. Glock 48 chambered in 9×21 IMI
  38. Glock 48 Rail (non-MOS version – Europe only)
  39. Glock 48 Rail chambered in 9×21 IMI
  40. Glock 19 made for Canadians with an extended barrel and maple leaf on the slide
  41. Glock 19 Tactical (‘Tactical’ written on the right side of the frame. I believe these were marketed for the Philippines) – 4.5lb connector
  42. Glock 17DK/19DK – Danish pistols with an extended barrel
  43. Glock 17MB/19MB/21MB – Gen 3 ambidextrous mag release pistols from Europe. Not sure if the 21MB is the same 21SF pistol with ambidextrous mag release and picatinny rail that was briefly available here in the U.S. I suspect not. The 17MB is also available in OD.
  44. Glock 17S – G17 with manual safety used in Tanzania, New Zealand, Israel, Pakistan, South America, and Royal Thailand Police
  45. Glock 22S – G22 with manual safety
  46. Glock 17 Pro – produced for Finland, with threaded barrel, maritime spring cups, extended slide stop lever, 4.5lb connector, night sights, +2 mag extensions, and redesigned mag release.
  47. Glock 17AO – Australian Gen 3 G17 with threaded barrel, in Olive Drab (GLOCK17AO)
  48. Glock 19/23 Mariner – ‘Mariner’ marked slide, 4.5lb connector, maritime spring cups (I believe marketed solely for the Philippines)
  49. Glock 25 (PN2550702)
  50. Glock 25TB
  51. Glock 28
  52. Glock 46

Special Purpose / Training / Cutaway Pistols

  1. Glock 17P Gen 5 (full red)
  2. Glock 17P Gen 3
  3. Glock 17T FX/FOF Gen 4
  4. Glock 17T UTM Gen 3
  5. Glock 17T UTM Gen 4
  6. Glock 19T Gen 2
  7. Glock 19P Gen 3
  8. Glock 19P Gen 5 (full red)
  9. Glock 19T FX/FOF Gen 3
  10. Glock 19T FX/FOF Gen 4
  11. Glock 19T UTM Gen 3 (released 2017, IIRC)
  12. Glock 23P Gen 3
  13. Glock 26P
  14. Glock 45P Gen 5 (full red)
  15. Glock 17 Gen 5 Cutaway
  16. Glock 19 Gen 5 Cutaway
  17. Glock 20 Gen 2 Cutaway
  18. Glock 20 Gen 3 Cutaway
  19. Glock 22 Gen 2 cutaway
  20. Glock 23 Gen 2 Cutaway
  21. Glock 26 Gen 3 Cutaway

Commemorative Pistols

  1. Glock 19 Talo Premier Gold Edition
  2. Glock 23 Talo Premier Gold Edition
  3. Glock 19 & 26 “Defense Set” w/ presentation case or just the presentation case
  4. Glock 23 “Homeland Defender” w/ GTL-10 light (although I can provide the GTL-10 if needed)
  5. Glock 17 “Homeland Defender” w/ GTL-10 light (although I can provide the GTL-10 if needed)
  6. Glock 23 Gen 3 “America’s Heroes”
  7. Glock 23 Apache Instructor Pilot Model
  8. Glock 22 FBI “100th Anniversary” w/ presentation case (or without the presentation case, as I now have a case). See Glock 22 FBI 100th Anniversary
  9. Glock 23 Gen 2 “Kiowa Warrior Commemorative” (only 26 made – with USAxxx serial)
  10. Glock 19C Gen 3 Operation Enduring Freedom (“OEF-XV11 2011-2012” on the slide)
  11. Any of the pistols from the ELP program. I already have one of them, but looking for more. See Hand Engraved And Gold Inlaid Factory Glocks for more info.
  12. Any of the 30th-anniversary pistols. See A Year of Perfection.
  13. Detroit PD marked Glock 23. I have a matching G22 and G27 and would like to complete the set.
  14. Glock 19 made for the Vatican
  15. Glock 23 Apache Instructor Pilot
  16. Glock 23 Gen 2 “50th Anniversary of Bell Helicopter”/ 100th Atlanta Olympics with display case
  17. Glock 27 Gen 3 “Ducks Unlimited/Great Outdoors” (only 1 made)
  18. Glock 27 Gen 3 “40 years of Alaska Statehood 1959–1999” (only 100 made)
  19. Glock 17 Gen 3 2 millionth Glock (either the single Austria pistol or the single USA pistol)

Miscellaneous

Here are the various non-pistol items that I’m looking for.

Glock Tactical Lights

  1. Glock Tactical Light GTL-11 (light w/ dimmer)
  2. Glock Tactical Light GTL-51 (IR light & IR laser)
  3. Glock Tactical Light GTL-52 (IR light & IR laser w/ dimmer)

Glock Knives

  1. Glock 81 knife – GSSF 25th Anniversary (engraved blade). See these pictures.
  2. Glock 78 ‘Perfection Desert Storm’ knife used in some of the Desert Storm display cases. See these photos.
  3. Glock 78 gray with the current logo
  4. Glock 81 desert tan with circle logo
  5. Glock 81 from Malaysian military with VAT 69 Komando logo on blade and sheath
  6. Glock 81 with “Noricum” roll mark on the sheath
  7. Bayonet adapter for the Steyr Aug rifle that works with the Glock knives

Accessories/Parts

  1. Green label case – Current gen case with a fully intact green label and foam. The case can be otherwise empty.
  2. Orange Glock 17 and 20 training mags. I currently have the orange training mags for the 19, 21, 22, 23. So I’m open to orange training mags in other models not listed here.
  3. Glock warranty card, Form US 003 – 04/88, without any writing in the serial number boxes
  4. Glock mag loaders marked ‘4832’. I need 6 of them. See this picture.
  5. Glock staked front sights in excellent condition. I need 4-6 of them. See this picture.
  6. Some of the original plastic thread protectors for the TB pistols. I bought a couple of used TB guns and they didn’t come with them.
  7. Glock disassembly tool (olive)
  8. Laser filters (all of them)
  9. Dummy barrels (all of them)

Printed Materials

Glock Autopistols magazine. I have extras of 1995, 2012, and 2013 to trade/sell. I need the following issues:

  1. 1996
  2. 1997
  3. 1998
  4. 1999
  5. 2000
  6. 2002
  7. 2005
  8. 2006
  9. 2007
  10. 2008
  11. 2009
  12. 2011
  13. 2014
  14. 2015
  15. 2017
  16. 2018

Bullet In magazine – this was a magazine sent only to stocking dealers. I’ll take any issues.

Glock Armorer’s manuals. Not the aftermarket ones. I need the following ORIGINAL (although I’ll also gladly accept quality scanned .PDF versions):

  1. 1985
  2. 1986
  3. 1987
  4. 1988
  5. 1989
  6. 1990
  7. 1993
  8. 1994
  9. 1995
  10. 1996
  11. 1998
  12. 1999
  13. 2001
  14. 2003
  15. 2004
  16. 2005
  17. 2006
  18. 2007
  19. 2008
  20. 2010
  21. 2011

Glock Annual magazine. I have every issue, so I don’t need any. But I have extras of the following issues to trade/sell.

  1. 1995
  2. 1996
  3. 1997
  4. 1998
  5. 2001

Glock Report magazine. I need all issues before 2011 issue 1, with the exception of 2007 issue 2, which I have. I have extras of the following to trade/sell:

  1. 2012-2
  2. 2013-1
  3. 2013-2
  4. 2014-1
  5. 2014-2
  6. 2015-1
  7. 2015-2
  8. 2016-2
  9. 2017-1