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Thread: Glock small parts maintenance

  1. #1

    Glock small parts maintenance

    I'm preventatively changing out small parts and springs in a Glock G45 at ~15K rounds. Some are in stock at glockparts.com but many are OOS. Which of these are most important, and am I missing anything?

    Recoil Spring Assembly: 5,000-7,500 rounds (Glock Gen 4)
    I have spares
    Firing Pin Spring (striker): 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-spring-5-lb/
    Firing Pin Safety Spring: 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-safety-spring/
    Extractor Depressor Plunger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-extract...lunger-spring/
    Magazine Catch Spring: 15,000 rounds
    $4 https://glockparts.com/glock-magazine-catch-spring/
    Trigger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-trigger-spring-5-lb/
    Slide Lock Spring: 15,000 rounds
    OOS https://glockparts.com/glock-oem-gen...pring-g17-g19/
    Slide Stop Lever Spring (attached to slide stop lever): 15,000 rounds
    OOS assembly: https://glockparts.com/glock-oem-gen...-g17-g19-g19x/

  2. #2
    Quote Originally Posted by ArgentFix View Post
    I'm preventatively changing out small parts and springs in a Glock G45 at ~15K rounds. Some are in stock at glockparts.com but many are OOS. Which of these are most important, and am I missing anything?

    Recoil Spring Assembly: 5,000-7,500 rounds (Glock Gen 4)
    I have spares
    Firing Pin Spring (striker): 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-spring-5-lb/
    Firing Pin Safety Spring: 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-safety-spring/
    Extractor Depressor Plunger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-extract...lunger-spring/
    Magazine Catch Spring: 15,000 rounds
    $4 https://glockparts.com/glock-magazine-catch-spring/
    Trigger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-trigger-spring-5-lb/
    Slide Lock Spring: 15,000 rounds
    OOS https://glockparts.com/glock-oem-gen...pring-g17-g19/
    Slide Stop Lever Spring (attached to slide stop lever): 15,000 rounds
    OOS assembly: https://glockparts.com/glock-oem-gen...-g17-g19-g19x/
    Mind you that as someone with a Glock ''First Aid'' kit filled with no less than 5 each of every slide and frame component for the Glock 17 and 19 (Gens 2 and 3), so I might be a bit biased, but why not enjoy the peace-of-mind of changing everything out save for the magazine catch spring for about $40.00?

    I recently rebuilt a much older 17.3 (retaining only the frame, barrel, and slide) that I carried as a state liquor enforcement agent and replaced all of the springs except the magazine catch spring because it was still maintaining sufficient engagement of an inserted magazine.

    You can probably skip replacing the magazine catch spring since it is not subject to the severe cyclic wear that some of the other springs are unless you are experiencing problems with it.
    ''Politics is for the present, but an equation is for eternity.'' ―Albert Einstein

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  3. #3
    Site Supporter ST911's Avatar
    Join Date
    Dec 2012
    Location
    Midwest, USA
    Quote Originally Posted by ArgentFix View Post
    I'm preventatively changing out small parts and springs in a Glock G45 at ~15K rounds. Some are in stock at glockparts.com but many are OOS. Which of these are most important, and am I missing anything?
    If you're not having any issues, there's no compelling reason to change anything on your list but the RSA.
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  4. #4
    Member
    Join Date
    Mar 2021
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    MNL PHL
    Quote Originally Posted by ST911 View Post
    If you're not having any issues, there's no compelling reason to change anything on your list but the RSA.
    True. On a pre-Gen 5, I'd replace the slide stop every 5-7.5k rounds depending on how much spring tension it still had. I tend to replace spring cups at the 10k mark. Not sure if it's necessary but the cups are cheap so I don't mind.

  5. #5

    Check parts list...

    Quote Originally Posted by ArgentFix View Post
    I'm preventatively changing out small parts and springs in a Glock G45 at ~15K rounds. Some are in stock at glockparts.com but many are OOS. Which of these are most important, and am I missing anything?

    Recoil Spring Assembly: 5,000-7,500 rounds (Glock Gen 4)
    I have spares
    Firing Pin Spring (striker): 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-spring-5-lb/
    Firing Pin Safety Spring: 15,000 rounds
    $5 https://glockparts.com/glock-firing-pin-safety-spring/
    Extractor Depressor Plunger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-extract...lunger-spring/
    Magazine Catch Spring: 15,000 rounds
    $4 https://glockparts.com/glock-magazine-catch-spring/
    Trigger Spring: 15,000 rounds
    OOS https://glockparts.com/glock-trigger-spring-5-lb/
    Slide Lock Spring: 15,000 rounds
    OOS https://glockparts.com/glock-oem-gen...pring-g17-g19/
    Slide Stop Lever Spring (attached to slide stop lever): 15,000 rounds
    OOS assembly: https://glockparts.com/glock-oem-gen...-g17-g19-g19x/
    I'm away from my Armorer manual, but the G45 I believe has a different rsa- "1 7" if I'm recalling correctly.
    You can check at the Glock website online.
    We change the rsa on our Gen5s between 5 and 10,000 rounds. Have seen few issues with other springs other than people losing them.

  6. #6
    Member
    Join Date
    Jan 2023
    Location
    Central Texas
    Correct, you want part 39310, Recoil Spring Assembly dual - 9mm G19Gen5,G19X,G45, G45MOS (marked 1-7)

  7. #7
    Frequent DG Adventurer fatdog's Avatar
    Join Date
    May 2016
    Location
    Rural Central Alabama
    Nothing wrong with refreshing those but I don't agree any of that except the RSA is going to help or prevent anything at only 15K rounds.

    Also spring cups can get beaten up and gunked up if I were doing a refresh of the gun. Striker safety on gen 1-4 can get rounded and eroded down to a point where the striker can push past it, but that is a lot of cycles.

    The only thing on my replace it before it breaks list prior to 50K is the RSA, and I do the safety checks prescribed by the armorer course including checking the striker safety. Since I have many Glocks and I am old there is zero chance I am getting to 50K on one I guess.

  8. #8
    Coincidentally while cleaning just now I found a broken slide stop lever.

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    And fortunately I had just ordered this spare lower parts kit from Black Phoenix:

    https://blackphoenixcustoms.com/gloc...kit1917344519x

    According to the FAQ the parts are pulled from factory new guns. Mine included a minus connector and an extended slide stop lever so I'm going with that. They also have $5 Gen 5 RSAs! I bought 4 and all were marked 1-7-0. Everything I got appeared unused.

    https://blackphoenixcustoms.com/gloc...springassembly

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