Decent 170mm external BB cranks/chainset wanted

I think I have a set of 170 XT (m770) cranks, need to check the length. What 175s do you have?
 
Lots! Internal or external BB?

External I have FSA afterburner 9s triple, XT converted 9s micro double (22-32), SLX 10 speed std double

Internal bb I have lots!!
 
Sorry, it's 175.

I'd be interested in any black cranks you have though. 4 arm or 110 bcd compact if you have anything.
 
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