About the Rifle: Semi Automatic, 6mm Caliber BB, i think it is about 1 Joule of Power, 1 Magazine, vertical grip from a cheap AirSoft Gun.

 I never really used the Rifle, around 20 to 30 magazines shot at home. works well as far as i can say. I never had  problems. 

With the Rifle comes a matching battery and charging device, also not used often, maybe 5 to 10 charging cycles.

If you have more questions please contact me and i try to get you an answer but I never got really deep into all those things :)