Get-Reload have sent over details of the 3.5x G36 carry handle scope with top rail they are stocking:
3.5x G36 Carry Handle Scope with Top Rail
US$39.5
3.5x magnification scope built-in carry handle. Metal constructed top rail for extra accessories attachment. Military reticle. Multi-layers coated lens offer high resolution and reduce reflection. Windage and elevation adjustment. 3.5x magnification. This reliable scope is waterproof and fogproof. Suitable for G36 Series Airsoft AEG.