Got XT 760 chainset on my bike which will soon need inner and middle chainrings. Got some deore steel ones which I was going to stick on.

However, have now noticed that specific chainrings are sold for this model, does that mean other 4 arm rings (like my deore ones) won't fit?

Sorry, it's a XT 770 with the composite rings but still need to know if I can use the deore steel middle and inner.