The rubber buttons on my BG just pop out. You can either push them out from the inside, or pry them out with your fingernail from the outside (doesn't take much effort - just wedge your index finger nail alongside and pull). Now, maybe they should be glued in, but if so, then mine aren't. I have found that on the inside of the rubber button there is a tiny rubber post which is supposed to push on the solenoid of the laser. It is not well centered and can be pushed to the side easily. I believe if the buttons are inserted in a way where the post is "off-center" then it doesn't push as well on the solenoid, thereby making it harder to activate.