The Horzine Mark 7 Bundle is sold in the in-game store of Killing Floor 2 for $4.99. It contains Gear for most characters.

This is not to be confused with the Horzine Elite Bundle, which was a pre-order bonus that is no longer available.

"Comes with Horzine Mark 7 Suit (includes 7 skin styles) and Horzine Mark 7 Cosmetic Accessory (includes 7 skin styles). Not tradeable or marketable."

Bundle HorzineMark7