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Rifle Scopes Thread pitches for scope objectives?

WindstormSCR

Gunny Sergeant
Full Member
Minuteman
Jun 28, 2021
901
780
Maryland
Recently bought a Primary Arms Athena 6-30x56 PLx, enjoying it quite a lot. One thing I did want to get for it at some point is an anti-reflection device, however Tenabraex doesn't list a part number for the Primary Arms optics, and Primary Arms themselves doesn't sell one for the 56mm objective optics.

Thought I'd post here to see if anyone had been down this rabbit hole before and if there was a chart of which optics use what thread pitches I had failed to turn up in my searching.

worst case I can find a clamp type to use, but given the objective and sunshade are threaded, it seemed like a waste not to find a matching ARD given the price of the optic.