Clip or magazine I forget which its called. The question is I want to put a finger extender on it because I have a bigger hand. Now one guy at the shop was telling me how to do it but he said he couldnt because it would give me an extra shell in the mag. He said it can be done but it is illegal. Now if I did this and got caught somehow what would the penalty for somehting like this be? I dont want to break the law but it fits better that way. Any ideas?