Redditor SteveStrago has crafted a reversible red dot mount for the Type 81 that fits over the rear sight block. It may be a good complement or alternative to TI's full rail mount. He says he would produce some for sale if there is enough interest. Perhaps a site sponsor could partner with him in some manner to bring this to a wider market? -> https://www.reddit.com/r/canadaguns/comments/pdmh92/my_custom_type_81_rifle_and_my_in_progress_lmg/