Childs stuff.....
This is old tech, just geting some sun. As the others have said, it has been around for 50 or 60 years, and is now completly obsolete! I for one will never own a gun that needs batteries to function. Any fool with an electronics manual can make an EMP devise that will fry the electronics in the gun! You want a BG, or nazi like gov to set off an EMP, then break your door down!?
If you have not had the opportunity to read about this, you need to now. This is real, and it will be in this country soon. We need to boycott any defensive weapons with this! Here is the link, you need to take a look.
www.metalstorm.com
Target rifles are one thing, I even checked to see if my rifle could be modified for an electrically actuated sear, but NO defensive gun should have any electronics in it! Take this as a small step in the dirrection of dissarming the public. Take this very seriously, it is bigger than you think.
Sorry if I come off to strong with this, but this has the potential to be a very, very bad problem.