From the store page: This blister includes a Greif Operator with two Breaker Pistols and two head options. Does anyone have any photos of the other head?
Sadly I cannot help you with your question, but how did you find that in the store? It's not listed under miniatures for me oO
It's in the "Coming Soon" section, which is bizarrely only linked to at the bottom of the page https://store.corvusbelli.com/coming-soon Searching for "Greif" also brings it up, note that the spelling is intentional.