Proudly, Saturday, I will become the newest member to AR owner family. I'm going after work to pay my remaining balance on a Century Arms 5.56mm AR with 20" barrel and solid stock. I work with several guys who have different AR variants mostly 5.56 though. I was told by them to stay away from Lake City ammunition. My dad bought his back in the 80's and he said just use military ammo. What is the best ammunition to use in this rifle? Keep in mind that I make $12.50 an hour with other bills, so I don't have a lot of cash to spend. I like reliable and cheap.