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KWA MKII PTP Slide Issue

MKII PTP 1911 slide issue

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#1 General Pickle

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Posted 09 July 2012 - 01:27 PM

So I've had a Tan MKII PTP for about 9 months now and I love the thing to death, however just this weekend it has developed a problem: When I fire the gun, with or without BB's, the slide locks back, but not from the slide catch, in fact the hammer is getting caught under the slide and will not return forward until I manually push the hammer down. This seems to happen when I'm in a warmer climate, however when indoors with air conditioning and all that it does not occur very often. It seems that the material of the slide assembly where the hammer slides has worn down, meaning that the slide goes beyond the hammer and then the hammer springs up into the nozzle assembly, jamming the slide open. How can I fix this? Could I get a new slide assembly or maybe just the internal assembly that houses the nozzle and valves? Any experience and help is greatly appreciated.
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#2 niko_gpsy

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Posted 10 July 2012 - 02:54 PM

You may have a pin on the hammer assembly that has broken off and causing the hammer to lodge against the slide.  I would suggest you send it in but I think there was a member here that made the repair himself.  I will see if I can find that thread when I get home.

#3 Huntsman82

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Posted 10 July 2012 - 05:23 PM

I had this same problem with my m226. I upgraded the recoil spring and that fixed it. I also upgraded the hammer spring but that made it worse. So I stuck with only the recoil. I guess the stiffer spring causes it to cycle faster and harder so it can't snag. Maybe this will help you too.

Edited by Huntsman82, 10 July 2012 - 05:24 PM.


#4 Outlaw1995

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Posted 10 July 2012 - 05:25 PM

View Postniko_gpsy, on 10 July 2012 - 02:54 PM, said:

You may have a pin on the hammer assembly that has broken off and causing the hammer to lodge against the slide.  I would suggest you send it in but I think there was a member here that made the repair himself.  I will see if I can find that thread when I get home.
Would we be talking about this thread?

http://kwausa.com/fo...?showtopic=8093

#5 General Pickle

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Posted 10 July 2012 - 08:31 PM

View PostOutlaw1995, on 10 July 2012 - 05:25 PM, said:

Would we be talking about this thread?

http://kwausa.com/fo...?showtopic=8093
I've seen that problem happen to another player's gun but my situation here is not that same thing. Upgrading the recoil spring sounds like decent logic, maybe I'll try that. What else might I be able to do? I can't seem to find that one part for sale so replacing it may be difficult though I think I'd like that best, at least that way I could stay with all KWA internal parts.

#6 General Pickle

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Posted 11 July 2012 - 09:17 PM

I have a new plan of action: I will insert a small washer on the guide rod to make the point of return for the slide a tiny bit closer. Hopefully this will prevent the hammer from getting under the point in question without decreasing other functions, rather it may even enhance the cycle rate and kick. I will post my results when I have completed the work. Your feedback and suggestions are all appreciated very much!

#7 niko_gpsy

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Posted 12 July 2012 - 03:15 AM

View PostGeneral Pickle, on 11 July 2012 - 09:17 PM, said:

I have a new plan of action: I will insert a small washer on the guide rod to make the point of return for the slide a tiny bit closer. Hopefully this will prevent the hammer from getting under the point in question without decreasing other functions, rather it may even enhance the cycle rate and kick. I will post my results when I have completed the work. Your feedback and suggestions are all appreciated very much!

What your speaking of is short stroking the GBB pistol. I don't think a washer will be sufficient to notice any changes in recoil and cyclic rate. You can try using the tube from a bic pen cut to about an inch and slide over the recoil rod. You will have to experiment with the length though since too much will not allow the slide to lock back when mag is empty since short stroking will hinder the slide's full travel. Good luck and let us know how it works out.

#8 General Pickle

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Posted 16 July 2012 - 09:42 PM

So far so good: I cut a washer out of a plastic container lid and placed it in the recoil spring assembly to short-stroke the slide ever so slightly. Though I did not use the pistol for more than 3 magazines I had no instances of the slide getting stuck on the hammer, as opposed to it previously jamming up every time I fired the gun. I will post more about this if the issue resurfaces, however I am confident this will be a permanent fix. Thank you all for your help and experience!





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