I have here an Echo1 GAT package which comes with mock supp, magpul afg, modified stock, battery bag, and four midcaps and 2 hicaps. Upgrades include a nukefet and neo motor. I believe other parts have also been upgraded but it's been so long I don't remember what else. Price reflects the assumption that only motor and nukefet are included. Rear sight has been replaced with a screw which holds the upper in much more securely.