YouTube - AirSplat ON DEMAND: ICS M4 RIS Sport Airsoft Electric AEG Gun Review Episode 26
I myself have a ICS M4 RIS Sport which has the cut-off carry handle rear sight and the RIS at the front. It also comes stock with the Crane style stock that houses the battery and the batteries for this type of gun ARE proprietary so keep that in mind.
Cheers,
FACE