This is the sand cast trigger guard that GRRW used to craft Leman rifles back on the 1970's. There was a box full left over when GRRW closed down in 1980. Just found it in storage. For a sand casting, the quality is pretty good. A file and emory cloth will clean it up and its not very expensive.
This is NOT the trigger guard used in the new Leman kit. That trigger guard is high quality investment cast.