That's a good idea to replace and still keep the old. There are two different styles of forearms to consider. Early models of 94s & 92s had forearms about 1-1/4" longer in length than the later models of 94s. But as far as I know both are indeed interchangeable and I'm pretty sure their barrel bands are also interchangable. But~~~ when you remove your rifles barrel band its best to mark it so to re-install the same way it came off. As a 180* turned barrel band can damage the forearms wood. Be it original or replacement wood. I found that out the hard way on my 25-35 with its teardown.