First thing to check is the caliber. If the crown is original and the barrel is shorter it could very well be a Golden State conversion to .308.
Check the side of the rear sight or the barrel back just under the rear sight for a .308 stamp.
The Swiss never, ever changed to a profile like that. Its definiteley an importer change, and if it is a .308 conversion, it's going to be a very accurate rifle with the right load.
No k11's were ever modified. All of them began as 1911's.
An'' ole' Brer' Rabbit, he set in de bushes, he watch an' he wait, lay low an' he don' say nuffin'.