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500 JIC trigger broken. Again.

Discussion in 'Mossberg 500 Pump Action' started by slimvdub, May 15, 2017.

  1. slimvdub

    slimvdub Copper BB

    Messages:
    8
    So I have a 500 JIC model and it keeps breaking triggers. I am on my 3rd trigger now and would like to fix it. What could be causing this? All 3 broke in different spots. This is the latest one. I get about 10 shots in between triggers. I also want to note that I have been using the same trigger housing and just replacing the triggers
    [​IMG]
  2. stigmata

    stigmata 20g

    Messages:
    972
    Wow.
    I've never heard of that issue with the 500 personally. What shells are u using?
    Maybe someone will chime in about this with some experience. But that is Just odd that u have been thru 3 triggers with so few shots thru it.
    I would suggest a whole trigger housing replacement.
    I would get with Mossberg for that issue. They should make it right especially after 3 triggers.
    butodw likes this.
  3. slimvdub

    slimvdub Copper BB

    Messages:
    8
    I am using Winchester Target loads 8 shot 2 3/4. Mossberg doesn't seem to wanna help me out. I contacted them when the first trigger broke and they assumed I must have been doing something wrong.
    [​IMG]
  4. blacksmith

    blacksmith .270 WIN

    Messages:
    367
    This is a weird one :confused:

    The trigger is breaking at two places. In the center and also at the very end.

    I'm betting the safety post (whatever its called, mounted on the trigger) is contacting the safety block inside the receiver. In the photo the safety post almost looks likes its backwards.

    Any information or pictures will help. We're gonna need them to figure this out.
  5. slimvdub

    slimvdub Copper BB

    Messages:
    8
    The post is backwards in that photo. When the gun broke the parts were just rattling around in there. What does everyone want pictures of I will take pictures of anything to get this fixed
  6. blacksmith

    blacksmith .270 WIN

    Messages:
    367
    If the trigger is held down and the pump moved back the locking block will contact the trigger/safety post.

    Any chance you've got a death grip on the trigger while slamming the pump back?
  7. slimvdub

    slimvdub Copper BB

    Messages:
    8
    No I always take my finger off the trigger in between shots.
  8. John A.

    John A. Unconstitutional laws are not laws. Staff Member Administrator Global Moderator

    Messages:
    15,213
    Send it back, let Mossberg deal with it.

    If you have remnants of the other 2 triggers, send them with it. or at least photos of them.
  9. slimvdub

    slimvdub Copper BB

    Messages:
    8
    Yeah I talked to them they said send it in and it would be 8-12 weeks. Seems a little excessive. So I don't think I am sending it in.
  10. John A.

    John A. Unconstitutional laws are not laws. Staff Member Administrator Global Moderator

    Messages:
    15,213
  11. blacksmith

    blacksmith .270 WIN

    Messages:
    367
    Its going to take a fair amount of force to break that. Are you noticing any binding, crunching etc?
  12. slimvdub

    slimvdub Copper BB

    Messages:
    8
    No nothing worked fine for about 25 rounds then broke the trigger. Then installed second trigger 2nd shot broken trigger. Installed 3rd trigger 5 shots then broken trigger.
  13. RichardL

    RichardL .270 WIN

    Messages:
    137
    Take a couple of shots of the inside of the receiver.

    First guess? Take out the stock/grip bolt and add a couple of washers to it before reinstalling it. Second, have you changed your safety by any chance?

    The common mistake that usually causes that problem is folks installing the pistol grip using a longer full stock bolt. If the bolt extends into the receiver so it crosses the safety connector path, it breaks the safety connector tab off the trigger and can break the trigger itself. That stock/grip bolt shouldn't extend out of the hole inside the receiver more than a hair at most. If it does, washer it inside the grip/stock to shorten it.

    If you have a Mav 88, you can take the trigger out of the Mav and replace it back into the 500. The Mav trigger is identical and that extension part is only used for the 500 safety function. It's not necessary for the Mav 88.
    Last edited: May 17, 2017
  14. slimvdub

    slimvdub Copper BB

    Messages:
    8
    The grip screw is the first thing I checked. It doesn't protrude at all. I think I am just going to send it off to Mossberg and let them deal with it. I will keep everyone posted when it comes back in a few months
  15. slimvdub

    slimvdub Copper BB

    Messages:
    8
    Got my shot gun back already. Great job Mossberg. So they replaced everything but the receiver, barrel, and tube. I am taking it out tomorrow for a shoot and will let everyone know how it goes.
  16. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    8,655
    Well I'm surprised you got it back in 2 weeks but the 8~12 weeks was ridiculous. I've never sent any of my guns back, but from what I'm reading it never takes that long.

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