It's part no 2035.965.2, as described here : http://www.schiesssport-buinger.de/s...mical-handstop,
but without the sling attachment (p/no 2000.9351) which I should have had at one time but have long since lost it (much to my annoyance). Might be useful as a spare to someone, no idea as to value so starting off at £40 posted. Piccies or further info available by E Mail : vicorgill@onetel.net.

Thanks, Vic Thompson