Now get to read more information about Heckler & Koch's new rifle, the HK433. A brochure is available to download at the SpartanAT website and shows even a Flat Dark Earth, and an optional Green Brown versions. The HK433 is said to be a combination of the best features of the G36 and the HK416 and will be entered by the company for the G36's replacement in the Bundeswehr.