The G41 was the first semiauto rifle adopted by the German military, and it was not particularly successful. The Mauser version in particular was really a failure – only a few thousand were produced before it was pulled from service. They were around long enough to have a manual published though, and we have a copy of it here for you:
(1943) G41(M) manual (German)
No,
This is not G41 M manual…
This is G41 W which means walther model…
To find G41 mauser manuals is very scarce and nearly impossible..