I would almost bet that they are resin.
From the last made to order things I bought I would say that anything which has only ever been in metal still seems to be metal when they do made to order.
So, can I ask a possible total noob question.
Is it possible to use these models with a seraphon army in AoS? If so, where would I get the point value of these models?
Proud owner of both in 1-2 months lol