This is a fully decked out Challenger 2 tank, with ALL steel parts. inside and out. I added the blow-back barrel, it shots bb's, has the big 7000, not the stock 1800. It has a KLIPSCH sound system, and it made a big difference. I added some running lights for my outside drive at night. Camera FPV, smokes, all upgrades, I LOVE it. to buy it like i have mine set up. Is about $380.- $400. You can buy the basic without ANY metal anything gears, tracks, wheels, etc, will run you about $175.