No Mannlicher, aka "full stock" rifles whatsoever either cataloged or custom work as known. Carbines, unsure of the response in connotation of the question. All the carbine barrels bore the dovetailed aft sight boss. An interesting question whether that sight boss could be removed from the barrel with yet sufficient diameter remaining. I'd guess not, but ??? Yet, easier to start with normal 70 barrel.

Winchester did turn out a special order of 'pre genre' Model 70 Featherweight rifles omitting the barrel rear sight slot, known to collectors as "Gopher Specials"; from Gopher Shooter Supply the name as I recall. Conceivably one of those could have been source for such a carbine of old. Nowadays, those genuine "Gopher Specials" are "considerable bucks collector items" too!

A full stocked rifle as described, another too typical application of the wisdom... "Buy the rifle, not the story!"

My definite take!
Best!
John


Last edited by iskra; 03/17/21.