Well guys and girls of course, i know theirs ladies out their that know just as much about guns as guys. anyway i have two questions first, about my new ar15 and another is about the best type of home/self defense to use for both uses. well my first question, iam just about done paying off my very first ar15 which is the bushmaster XM15 E2S M4 post ban with 16'' barrel instead of 14'' AND a collapsable telestock that only goes out so far for legel reasons but still is allowed to be a collapsable stock. it also has a mini Y comp muzzle break, well the question is... besides shooting .223 ammunition what other type of round can i put through my XM15E2S M4. i like the .223 but sometimes something bigger would be nice to shoot as well,maybe something like .bouwolf, .308 or something little bigger then .223 i still like .223 though. 2nd about the handgun i want to get next year iam 20 and will be 21 next year, and yea i know i have a year still ahead of me to be worrying about this but i want to get started cause it will take just about a year for ME to pick out my pistol and then get my liscense and be able to legally own my own handgun, as well as see if i can get my ccw permit if i can get one in new york state. but iam paralized from the waist down. i have full use of my hands arms and all upper body, so as for someone who would like to get himself a handgun for both fun at the range but deffinetly conceal carry if nessary i hope that never happens but if it does better safe then sorry. id like something a medium to small size handgun that can be nicely powerful. preferably .357, .38, 9mm, and my fav the .45 hollowpoints or regular .45 cal round.