horus heresy/30k Receptor chaplain crozius question

I haveq the chaplain from the Calth box set that is being sold now in a two pack with a Terminator Captain.

Link to someone's painted model

My question is in the Heresy books featuring Dark Angels, the DA chaplain Nemiel is described using it the Crozius one handed, the model has a haft that would make that very unlikely.

If any other heresy players run an army with a chaplain, do you cut down the Crozius?