Replacing Laser Lens

ok, i came from another thread but cant find any RIGHT answers there, i have a damaged lens but i cant replace it cause i can access the lens, it has some epoxy on it..

how can i safely extract the lens and replace it, its like focusable..

thanks for those who can help, and if you cant,, please avoid messing with my post..

You'll have to tell us more about the laser (wavelength, manufacturer, model, etc.) if you want specific help.

its JD-881 532nm laser, i searched the web for that product but i cant find it.. maybe this one is like that: LZMN - 532nm 50mW Focusable Green Laser Pointer

i also want to know if this module: http://lazerer.com/index.php?route=product/product&path=20_57&product_id=138
is compatible with any laser pens?? thanks

the inside of the host, which holds the lens seems to be epoxied and i cant figure it out how will i remove that, im afraid to ruin it all..