They're old man. I had my bad luck with 3 different px4's, all were tinted. Some were TM some were hk3p/we. All the front posts broke on the tinted versions and the same happens with glocks sometimes but that's tinted abs for you :/
They only sold the black plastic version for the pre~2008 versions, then sold only the tinted versions, and then there were a bunch of them black plastic again after 2014ish. Every store, mach1, TA, etc, had only tinted versions until I got one off ASC for a really old one.
I make replacement polycarbonate flashlight lenses! Send me a PM.