[Texas Armadillo]

I just took mine apart to check it out and it is fine. After reading the above posts and looking at the pics by FNHC that show where the crack starts, I wonder if it could be a combination of the pin stressing the plastic right where a seem or line is. Here is the pic by FNHC... (by the way, this pic looks like the plastic was exposed to excess heat I wonder if that is an issue)

What I mean is, if that pin is a tight fit, that plastic is under some stress. On mine, there is a 'line' or 'seem' in the plastic that runs right to the edge of that pin hole. That line is right where the crack is in the pics that were posted. In fact, there is not only a line but there is a little v-notch in the plastic at the top of that piece of plastic.

When the hammer falls it impacts the metal pieces, the metal pieces are on the pin, the pin is in the plastic, if the plastic is under stress because the pin is too big, and/or the mag is out, the plastic cracks where the pin goes thru the plastic... right where line/seem is. (I'm just speculating here of course)

In aircraft, holes drilled in parts are inspected carefully. No sharp corners or scratches are allowed near holes. Stress over time can turn those sharp corners or lines into cracks causing failure of the part.

I dry-fired mine about 20 times with the slide off and mag out, watching what happens when the trigger is pulled and also what happens when the decocker is used. It appears to me that both actions put stress on that pin.

I'm not going to worry too much about it but I will make sure the mag is in it when I dry fire it or decock it.

 

[Texas Armadillo]

I think I would like to try a slightly lighter hammer spring in mine. Maybe they will offer one. I don't like that idea as a permanent solution, but I would like to try it.

Is it correct to say that we've seen 4 frames crack on the right side at the weakest point? Either starting at the pin and running up , or from a point lower in the frame that creates a crack running back and up toward the hammer?

Is there another area where someone has experienced a crack?

When I get back home tonight I'm going to check the fit of all my mags to make sure they fit tight up against that 'block' of plastic making sure it can't move forward any. I'll use the oil trick that someone here mentioned to see where the mag is giving support. If I find a mag that is not supporting that right side of the block I won't use it. And like I said earlier I won't dry-fire or decock it anymore unless a tight fitting mag is in it.

 

[Texas Armadillo]

Your new metal pin doesn't seem to actually touch that line. My plastic pin looks like it does. (bad eyes) I wonder if that is part of their fix? Use a smaller metal pin. If so, that makes me wonder what change they may have made down lower where the other cracks have started.