I have unearthed a good working example of the above item from the depths of my garage. It was left over when I was forced to let my Ensign go.
If anyone is interested I will sell it for £35 or better still swap it for a cheap or faulty air pistol. Due to the size and weight this has to be a collect only deal.
I have photos but am unable to down load them onto this site. I will email them if required or you can see them on i-hunter market place.
Thanks for looking.