I'm missing the left (thumb) side from the original brown plastic R/H set and looking to get either the missing single grip or a R/H or ambi set (preferably plastic but wood considered). I know about RBgrips in the USA but thought I'd see what else was available before buying there. I notice from the 'For sale' section that Crosman 600 grips have sometimes come up in the past. Anybody got anything? My location is Swansea but I can also use a Toronto address if that is more convenient.