Who Made The Narrowest Hand Guard?

Thoughts as to who made the narrowest carbine hand guard during WWII ?
I've been sifting thru a crate and have found one maker who seems to fit the bill.
Seems to be both their Type I and Type II guards.
Looking forward to reading your replies and thoughts.

Regards,
Charlie-painter777

rsg look narrowest never have measured

i dont have as many as most of the fellas on here, but from what i see in mine is ,some of the stocks are slightly wider than others, not as much as the handguards.