We've had several discussions on this topic. Use the search engine with fal scope mount using all exact words (or something to that effect). The, thread entitled Scope & Mount SAR FN FAL, 308, advise has a member (Gattling) who designed his own mount. Now this is a mount that won't lose zero as it is a receiver mount, not a dust cover mount. I hope he's gotten it refined to the point he desired. It looks like a winner if he ever decides to commercially produce it.