Magazine question for 5904 (Blued vs. Stainless)

[Towns]

I see that CDNN has factory blued magazines on sale for $19.99 (that is correct, they are NOT Promag).

My question is this:
For some reason, when my 5904 gets just a little dirty, mags won't drop free when it's empty and the slide is forward. I realize that the slide should be locked back when it's empty, but still it bothers me. To reiterate, the mag will drop when locked back but not when it's forward. After I clean the mag well, it again drops fine, but doesn't take but a few rounds to make it not drop again.

The reason for the reference to the blued magazines is this: All my current mags are stainless. So, I'm wondering if the blued mags are just a tad thinner and will drop freer. I had a Beretta PX4 Storm that this was the case. However, on that gun the stainless mags were for the PX4 Duty which was beefier and had thicker mags.

Anyway, just wondering................

 

[Towns]

I tend to get long winded...........

Let me simplify my question:

Does anyone know if the stainless steel mags for 5904 are thicker than the blued ones?

 

[Jeffytune]

I do not think they are any thicker, but, and this is only my observation, the stainless feel slicker, smoother.

I have one blue steel magazine, and I used Flitz metal polish on it, it drops out just fine.

I use this on all my magazines, inside and out. I think it helps repeal dirt.
It sure make it easier to clean.

 

[armorer951]

The ones I have for the 5906/5904 are the same. The slight difference (.002") I noticed in a couple of the magazine bodies was the measurement from front to back, rather than the width.
I notice more discrepancies with regard to the followers, rather than the body of the mag shell. The followers seem to get damaged and collect dirt, which tends to become "imbedded" in the plastic. I actually clean and inspect the followers once in a while, and rub the sides over crocus cloth, or very fine 2000 wet/dry paper to remove debris and in an attempt to "recondition" them.