I have no rattle caused by mag in mag well. I do have rattle at times from ammo in the mag when loaded to full capacity - this with Mil Pros and PT24/7. I found it is the bottom one or two cartridges that sit loose when mag fully loaded. I also tap mag on bottom and back to seat cartridges after loading and this sometimes stops the rattle. Try with fewer cartridges and see if it still rattles.
With all my pistols, I frankly don't see a fully loaded mag under spring compression, held in place with mag release, would have the ability to rattle around in the mag well on a poly body pistol to the point of being noticeable. To me rattle is metal to metal or metallic sounding as I've found with ammo and mag rattle mentioned.
With all my pistols, I frankly don't see a fully loaded mag under spring compression, held in place with mag release, would have the ability to rattle around in the mag well on a poly body pistol to the point of being noticeable. To me rattle is metal to metal or metallic sounding as I've found with ammo and mag rattle mentioned.