I had the same idea, Ive got the one from LIDI and tried it on the rear of my sight, it works a treat, but its the joining thats the prob, you'd need some sort of stiff velcro band to join the two, as the front of nv is the same size as rear of telescopic, then another band?, to hold the nv steady on the rifle butt, of course it would be cumbersome, think Ill leave it till I can get a rimfire, then go with richie's £300 jobby