I'm new to concealed carrying and wanted to know if having the extra mags is worth carrying? I have grown up around guns and a great shot. I understand in a draw and shoot situation that ammo goes faster than expected but is an extra mag really going to help at that moment? I'm going to carry a glock 19 gen 4 which is 15+1. My thought on it is if I need more than that then this situation is how many am I taking with me. I understand the principle of "well u might need it," but in that case I should just carry my AR around. Is it necessary or just preference?