I am 16 (gone be 17, doesn't really matter huh?) and I want to get some cool hunting/combat knife, something of that sort. I wanna know if it's possible for me to buy a knife in Chicago Illinois with my parents help online? I don't wanna walk around with it or concealed carry, I just wanna have one at home. Can I do that legally? Order and keep a knife(longer than 3" for sure, for combat/survival) in my home?