Further viewing by me of the subject Stephen Grant SLE photos via magnification, does not support my original opinion that the gun does not have Stephen Grant patent ejector system and likely Southgate instead. Magnification of the fore-end iron does not show the typical Southgate ejector pivot pin is installed in this gun. Therefore the gun may be equipped with the second generation Stephen Grant ejector system, without the very thin kicker trippers.
Mbatten is trying to obtain a photo of the inside of the fore end so that positive identification can be determined.