Who uses marine spring cups?

Discussion in 'General Glocking' started by FireMedic-50, Feb 18, 2014.

  1. ELD89

    ELD89 Come and Take Them.

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    I got em in a G19.4 that is OEM with AmeriGlo Hackathornes and it is my EDC.
     
  2. GlockyQ

    GlockyQ

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    I put the old Maritime cups and old firing pin spring (that I already replaced) back on the firing pin to show what I meant by “they failed”.

    See the gap between the halves in the photo? That’s what I noticed initially.
    5F2A23C7-55DD-40D3-A47B-DF0F0559E0FD.jpeg

    Then, I experienced light strikes with factory new ammo. When I detail-stripped the slide and inspected the firing pin assembly, I found the MT Cups like this....
    177C3437-8C14-463B-86F6-1EE93898701E.jpeg
    I could push the cups back easily, but they came loose again like this soon....
    Perhaps it was the firing pin spring that was getting loose. But I didn’t want to take chances with my CCW. So I replaced the spring and the cups along with the spacer sleeve.

    Note that I shot 13K+ rounds (not 14K+ rounds I initially thought I shot) with the MT cups before I replaced them. So I don’t know if this will also happen to the regular cups or only to MT cups....
     

  3. happyguy

    happyguy Man, I'm Pretty

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    You can't get here from there!
    Reliability and durability are both important to me.

    I think I will try a "-" connector and an increased power firing pin spring.

    The heck with the maritime spring cups.

    Regards,
    Happyguy :)
     
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  4. laracraft

    laracraft

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    Marine related person can participant marine spring cups
     
  5. nraman

    nraman

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    AFAIK all the spring cups can have this problem if the end of the spring is resting on the joint between the two halves.
     
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  6. GlockyQ

    GlockyQ

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    I am fully aware of that as well. While you cannot see the other side from the phots, the end of the spring is NOT resting on the joint between two halves, but the two halves no longer stay closed. It was made sure that the end of the spring never rests on the joint whenever the gun was detail cleaned and inspected. When the failure occurred, the end of the spring was NOT on the joint, either. The maritime cups were “stretched/slightly deformed” over hard use, causing them to not stay closed on the firing pin.
     
  7. nraman

    nraman

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    What model is your Glock?
    Is it possible that the maritime cups cannot work on some models?
    They were originally designed for the G17.
     
  8. Spartan24

    Spartan24

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    The firing pin channel is virtually the same from Glock to Glock. That wouldn’t be an issue.

    Methinks that in this instance the cups were worn out, and I fail to see how a regular set wouldn’t have been worn out as well.
     
  9. nraman

    nraman

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    The firing pins are not the same.
     
  10. GlockyQ

    GlockyQ

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    I only tested one pair of maritimes cups (i.e., one sample) in one of my G43s. But given the same basic firing pin design across those 9mm Glocks, I tend to think that the maritimes cups work very similarly in all 9mm Glocks without significant difference between specific models.
     
  11. Bren

    Bren NRA Life Member

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    What?! But I carry a set in my pocket, so I can switch them out, just in case I have to do some underwater gunfighting.:rofl:
     
  12. Spartan24

    Spartan24

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    Notice where I said virtually, not entirely. To make my point, show me where spring cups for a 9mm differ from those of the .40 and from a .45.
     
  13. leadtag101

    leadtag101

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    Only because I have a new glock19x, I trust that I'll be just fine using this as a EDC! Absolutely love this gun BTW!
     
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  14. EzGoingKev

    EzGoingKev

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    Resurrecting this thread.

    I recently purchased a new Gen5 G19 slide assembly from someone. The firing pin assembly had the maritime spring cups on it.

    I knew they came on the 19X but this is a regular 19 slide with the forward serrations. Is Glock using these on all pistols now?
     
  15. HEXE9

    HEXE9 Supports Our Flag

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    No.

    The previous owner(s) swapped/added them to your slide assembly.

    And they may or may not be Glock OEM maritime cups.
     
  16. EzGoingKev

    EzGoingKev

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    No, he did not.
    They are.
     
  17. HEXE9

    HEXE9 Supports Our Flag

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    Your pistol did not leave the Glock factory with them installed.
     
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  18. fastbolt

    fastbolt

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    This is still in the Glock Parts List regarding the Maritime/Marine Spring Cups:

    You can go to Glock's website and view the parts list for certified armorers (at the downloadable materials section of the menu), and read the disclaimer on page 11 of the Parts list that must be sent when ordering the 4.5 connector and maritime/marine spring cups.

    Part of it:

    "Dept. Name) _____________________________ will not hold GLOCK liable for claims of negligent discharge due to light trigger pull on the 4.5 lb.
    connectors AND/OR (Dept. Name) ___________________________ will not hold GLOCK liable for any negligent claims concerning the SP03073 maritime
    firing pin spring cups."
     
  19. Bren

    Bren NRA Life Member

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  20. jonb32248

    jonb32248

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    I am well past qualifying for the Seals so I'll stay with OEM. Wouldn't know the difference anyway.
     
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