Gold Bullet Member and Noted Curmudgeon
I think the post-64 Model 94s have a malleable cast iron receiver, not one formed from sheet (even heavy sheet). Been told that, anyhow. The alloy doesn't take hot salt tank blueing well, leading to the thin iron plate for the final finish, which isn't very durable. Unless things have changed. Mechanically, the post-64 Model 94s I've handled seem to work well and hold up satisfactorily.