My understand is.. and correct me if I am wrong.. You push a brush down the bore and sweep off the electric arch? I know there is something to do with a brush. When they were on sale, I pm'd with a lot of people about whether they were going to take the plunge and purchase one. I did not as they are not legal in Wisconsin, so it would have been a range toy and I just can justify another range toy. But I was sure interested.

Also I agree with Nimmrodder on the battery problem. I used to hunt with a RED DOT on a rifle, a camera, and had a GPS in the bag. All battery dependent. Never once did I have a problem. Although I kept a spare set of batteries for them. I got rid of the RED DOT not because I had battery issues, I just did not like the aiming device. Its now on a handgun, and still the battery in it is working.