How is everyone doing today? Being a big fan of TM GBB, I was just recently informed that TM "Next-Gen" M4's are full metal. Although I am extremely hyped, I do understand that their SOPMOD is much older than the CQB-R. Which brings me to the question, does the CQB-R have much more upgraded internals? I want a longer barrel, but I would rather have something much more "UpToDate." I also thought that TM updates them every year and retailers sell the updated models. I am in need of answers as I would like to get one very soon :D. Thank you everyone and I hope you all continue to have a great day!