Hey there! I have the TruGlo TFX sights for my CZ P01. I got the rears off with no trouble, but the front is being a bear to remove. I punched out the roll pin already, but the sight won't tap out with a nylon punch and a mallet. I've hit it decently hard, but am afraid to go all out or switch to a hammer, for fear of cracking the tritium vial. Is there anything I can do to safely remove the front sight? I don't see any set screws or anything else that might be impeding it.