VP70z trigger problems--what's going on here?
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12

Thread: VP70z trigger problems--what's going on here?

  1. #1
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default VP70z trigger problems--what's going on here?

    Here's a VP70 question that doesn't involve the trigger weight, for once. I bought a VP70z online, and I've had a trigger issue since I got the thing. There's some kind of problem with how securely the sear holds the striker.

    -If I pull the trigger back smoothly and firmly all the way it'll fire normally
    -If I pause, hesitate, or release the trigger at any point during the pull, it'll usually instantly fire
    -It sometimes won't reset--feels like the sear isn't catching the striker

    Basically, the striker will drop prematurely unless you give it a good firm pull. This appears to have been going on for a while, since I can see where the striker surface has been hitting the firing pin safety. All the internal parts are assembled correctly and otherwise undamaged as best I can tell. I cleaned the gun a couple times, and detail stripped it, and that didn't improve the situation at all. The seller says it's unmodified and he supposedly wasn't aware of this behavior.

    Any thoughts? I'm more than a little uncomfortable with a gun that has a mind of its own. There are so few parts in there I've had a hard time visualizing what could be so out of whack to cause this. I don't recall VP70s being known for unreliability.
    Last edited by ABTOMAT; 01-01-2020 at 11:32 PM.

  2. #2
    Unrepentant HKHolic

    Join Date : Jul 2014
    Location : Naples, FL
    Posts : 3,082
    Mentioned
    14 Post(s)

    Default

    I have never even held one of those so I can't help much. But if I were in your shoes I would send it to James or Hk to get it running properly.

  3. #3
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default

    The gun's simple enough I just need to figure out where the misalignment or wear is. Best I can tell only 3-4 parts could be causing this but I don't have a working one for reference.

  4. Remove Advertisements
    HKPro.com
    Advertisements
     

  5. #4
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default

    Bump for ideas

  6. #5
    Gets the Shakes if No HK Contact in 24 Hour Period
    BeachBum's Avatar
    Join Date : Nov 2013
    Location : Northern Virginia
    Posts : 951
    Mentioned
    7 Post(s)

    Default

    Quote Originally Posted by JonFrost View Post
    I have never even held one of those so I can't help much. But if I were in your shoes I would send it to James or Hk to get it running properly.
    Ordinarily I would agree with you about sending it to James. He's a wiz with HK hardware, especially the legacy platforms. But I know he won't work on the VP70Z because I've asked if he would take a look at mine. No joy!

    Mark

  7. #6
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default

    Quote Originally Posted by BeachBum View Post
    Ordinarily I would agree with you about sending it to James. He's a wiz with HK hardware, especially the legacy platforms. But I know he won't work on the VP70Z because I've asked if he would take a look at mine. No joy!

    Mark
    Have you ever experienced the issues I'm having? Looking over the parts it's almost as if the sear isn't grabbing enough of the striker, but the lift spring is doing its job and there's no room for further movement in the design.

  8. #7
    Gets the Shakes if No HK Contact in 24 Hour Period
    BeachBum's Avatar
    Join Date : Nov 2013
    Location : Northern Virginia
    Posts : 951
    Mentioned
    7 Post(s)

    Default

    No I have not but mine is a low-mileage original. I'll take a look at it one night this week and see if I can see anything obvious.

    Mark

  9. #8
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default

    Still can't figure this one out. The prior marks on the firing pin safety makes it look like neither the safety nor the sear are engaging much of the striker surface. But there's no room for movement or adjustment, and it doesn't look like anything's been filed down.
    Last edited by ABTOMAT; 01-01-2020 at 11:32 PM.

  10. #9
    Member

    Join Date : Oct 2019
    Location : USA
    Posts : 61
    Mentioned
    0 Post(s)

    Default

    Bump time

  11. #10
    Desperately Needs Treatment

    Join Date : Nov 2010
    Posts : 1,088
    Mentioned
    0 Post(s)

    Default

    Not a gunsmith, but owned two VP's. With the slide off, you can pull the trigger and easily watch the sear. It should stay up in the rearward travel until the end. If it falls mid travel, see what is allowing that to happen. The VP is a really simple weapon.

Page 1 of 2 1 2 LastLast

Sponsored Links

 
 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •