Thanks fror that mike but we cant import gun parts into OZ without a lot of trouble However the long coil spring part in the top of the e bay pic looks like it might be the cross polt lever return spring much same as Greener do it Will let you know when I get it pulled down >I tried the 22mag insert today ,(the one with the 400mm barrel) which isn't supported except at the breech end Got a 3 shot group of 3/4 inch at 100 yards Amazing Regards Terry OZ