good for you, cadet!
however, i think you don't have your priorities quite where they should be. sure, AR's are fun. but just think, after you're commissioned you'll probably qual on most small arms in the army, and you'll be given more than enough time behind an m16. after you get that brown bar, you'll have the opportunity to shoot all you want.
but right now you're in college. it's only 4 years of your life. you should be putting all available funds you've got towards beer, girls, and burritos. i'm serious.
just think. as an officer you'll have to qual on the m16. when you go to the field, you'll lug around that weapon. when you get sent to the sandbox you'll pretty much be required to carry your weapon anywhere off base. to top it off you'll have to maintain the
accountability of your weapon, plus all your mens' weapons in your platoon. and eventually, on some lonely, hot, miserable day you'll look down at your m16 and just want to chuck it into a river. the last thing you'll want is to come back stateside and have an AR waiting for you at home.
whereas, you could take all that money and blow it on strippers, beer, and
maybe a girlfriend. then on that lonely, hot, miserable day you can look back on fond memories of your youth, and when you come back stateside maybe that girlfriend will be the one waiting for you at home.
"there is a time and place for everything. it's called college." - chef