Hey guys, I just bought my first AR lower!!! I know, how did I go this long without one? Anyhow, I went with the Plum Crazy lower because we had a group buy at work - couldn't pass up the price. I was thinking of going with a 7.62x39 upper since I already have a SKS and a small stash of 7.62. Has anyone had any experience with a 7.62x39 AR? Will post pics when I'm finished building it. I do have a line on a DPMS 5.56 upper for $490, but i"m still leaning toward the 7.62. Any DPMS users out there? Thanks in advance for the feedback.