The arrow takes an ACE pin with the corresponding Beiter Hunter nock ( if you are shooting compound). For in-out nocke for McKinney II it looks like you need one of the hunter nocks for a .166 diameter unless you are shooting an angled nock for Olympic. Beiter has a size chart or a call to McKinney would work. They are very helpful.
I was just hoping someone knew this info.. I'd have to buy a fairly decent set of calipers to get the degree of accuracy I need to get that close. I've emailed CT, nothing back. I'm surprised that no one uses this combo here. If the old 220 nocks would fit, that would be super..
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