Hey, I'm sure you have hears this like a million times before, I want to get a malkoff P7 droppin for my 4 d mag, . what battery configuration would be the best??? 12 AA's or would rechargeables be better? IF so what kind, do I need a sleeve? And yes I have used the search function and I just got a headache from trying to find the right threads. When you dont understand the terms and names of things it makes it tuff to understand. thank you