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Discussion Starter #1
I have a S&W PPK-S 380. I acquired it from the estate of a deceased friend. Occasionally when it is fired the whole slide assembly comes flying off. Any ideas/suggestions?
 

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When you pull the slide to the rear, you're not able to lift the rear of the slide off the frame?
The trigger guard does stay firmly against the frame?
Tell us more.
Moon
 

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Discussion Starter #3
I cannot lift the slide off without opening the trigger guard. Pretty sure the trigger guard stays firm when fired. Gonna fire it tomorrow and try to pay attention to the trigger guard
 

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Discussion Starter #4
Halfmoonclip....Shot it today. The trigger guard does not stay secure with each shot. If I hold it in place there is no issue. Suggestions???
 

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You will need to determine if the machining was done correctly on the trigger guard and all parts surrounding it as well as replacing the trigger spring and possibly trigger guard plunger. Numerich currently has all of the parts that you may require in stock.
 

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Ordered a spring today. gonna try an easy fix first
Hope you ordered the trigger guard spring, not the trigger spring as suggested above.

Now you need to do a search on how to remove the dogbone trigger guard pin and the trigger guard, or you're going to be ordering more parts.

M
 

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Hope you ordered the trigger guard spring, not the trigger spring as suggested above.

M
Good catch. I was fighting my auto correct that was changing trigger to tiger and deleted the guard part when I was making corrections.
 

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Discussion Starter #11
I did order the correct spring and I have watched a couple You tube vids on the procedure
 

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batj, make sure you read and understand the sticky, particularly the part about the dog bone shaped trigger guard pin.
As regards the trigger guard itself, how does it move currently? Does it hang up or otherwise stick, other than fully closed against the frame?
You would do well to take out the dogbone and examine the plunger and spring, and the dogbone itself for damage before ordering parts.
Moon
 

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Discussion Starter #14 (Edited)
380

Halfmoon, I removed the spring and plunger today. Cannot see any sign of damage. Prior to removing them the trigger guard spring seemed really strong. The guard was not hanging up or binding.
 

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The most likely explanation is a weak trigger guard spring coupled with strong muzzle whip. As the gun moves upward the shooter's trigger finger pushes down on the inside of the trigger guard and opens it, which in turn allows the slide to recoil further rearward, bounce off its rails and go flying downrange. This was a problem with the much lighter TPH, and Walther incorporated an interlock to prevent the trigger guard from being opened unless the magazine was first removed. I've never heard of this in a PP-series pistol, though.

I'd start by replacing the trigger guard spring. However...

The trigger guard is essentially a big leaf spring designed to serve as a recoil buffer, so it must have some flexibility. With the slide off, and the trigger guard closed, there must be a minimum of .060” clearance between the rear face of the upright stud of the guard and the front face of the barrel boss, in order to provide room for the trigger guard to flex. It might be possible for the trigger guard to transmit enough recoil shock to the frame to bounce open, but I have never personally encountered it.

If at least .060" clearance is not there, I'd replace the trigger guard too.

M
 

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Mike, I had noticed that with the TPH, and assumed they just wanted the magazine removed for safety's sake. That guard is much thinner and the guard spring less strong.

That is interesting.
As an aside, I was aware that the trigger guard was to act like a bit of a buffer in the PP series; IMHO, it's not a very good one. The deutschers were being too clever by half.
Moon
 

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Job well done. Another Walther returned to serviceable condition.
 
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