When I found "mine" it was in the form of an aftermarket barrel for Savage bolt guns.
I am a lefty also ......... I don't own a lefty bolt gun ..... go figure ........ but Savage has built a plenty of them.
When this barrel came up for a hundred something with brass, I figured my 30 year plus itch was meant to end ......... and so it did.
Best regards
Three 44s