Sort of update. It seems to be a junior model but doesn't match specs I've looked at on Google. A bit of a mystery for now. What ever it actually is it's certainly not a std improved model d so with that in mind I think i will keep it for a short time at least while I try to dig up more info maybe even try a few pellets through it ? At first I thought get a quick value & sell it on to someone to make something of it, now the value seems irrelevant it's more curiosity about the rifle itself now.