Trenchworx releases the German Wirbelwind and Ostwind FLAK variants. These 1:56 (28mm) scale resin-and-metal models are manufactured in our facility in Sandy, Utah, and come with magnets to keep your turrets snug and secure.
These models retail for $40 USD each, or $55 USD as part of the FLAK 2 Pack.
You can purchase these models at Trenchworx.
Instructions can be found here (Wirbelwind) and here (Ostwind).