Taking apart a wicked lasers core

So, I'm getting a core from a friend that I sold it too. She said it stopped working and wants me to buy her son a new one. So told her to let me hold onto the core and just give me $10 bucks. Anyway, i'm not planning on keeping the module that is in the core. I am planning on putting this module in it DIY 100mW 532nm Green Laser Module as I love pen lasers. However, from what I remember (only had it for a week or so) nothing really screws on or off. I could be wrong as this was almost a year ago. So does anyone know how to take them apart?