Picked this up a few years ago to use as backup, only played with it once myself, mostly been lent put to friends when they came out to play. Im missing the back plate on the stock but it still holds a battery with the inner plate. Recently rebuilt the gearbox to fix the air seal (it has been hanging on the wall for a while) it is currently at 1.6 joules. The factory high cap gave out on me but I will include a nicer metal highcap. Has a factory hopup unit but I did replace the bucking and nub (G&G green bucking firefly nub). Factory battery is dead, again wall hanger for about 4 years.