On the .22 mag version they call it "BRASSLITE" receiver, with a Brass buttplate.I’m curious about the brass receiver. Or the all weather model. The Henry website doesn’t list it though.
I'm pretty sure the receiver has some sort of plating on it.
The Side Gates have a hardened brass receiver.
They dont have the info like on the other models for the 45/70. I would think if the Side gates are hardened Brass the then the 45/70 would be as well.