I think Weaver discontinued them in about 1980 (+/-). Look at gun shows and ask gunsmiths if they have any in their " good junk" box. You might get lucky. I have a friend that showed me a very gently used 336 so equipped just days ago. I offered him an unseemly price for the mount. He just grinned. Jack

"Do not blame Caesar, blame the people...who have...rejoiced in their loss of freedom....Blame the people who hail him when he speaks of the 'new, wonderful, good, society'...to mean ,..living fatly at the expense of the industrious." Cicero