The Flak 43 was a Rheinmetall design and featured a completely new gas operated breech mechanism and numerous speed changes to manufacture. It did continue to use existing ammunition and the barrel remained basically the same as the Flak 18, 36 and 37. Changes in speed manufacture meant that only 1000 man hours were needed to manufacture instead of the previous 4320 man hours. Rate of fire, traverse, and elevation speeds was increased making the Flak 43 a great improvement over the existing guns. Item No 02311 Item Name FLAK 43 Bar Code 9580208023113 Scale 1:35 Item Type Static Armor Model Brief Length:110 mm Width:70.8 mm Total Parts 139pcs Metal Parts n/a Photo Etched Parts 1 piece Film Parts n/a Resin Parts n/a Total Sprues 5 sprues Paint Schemes German Army Released Date 2009-12 More Features " The kit consists of 139parts ,1 piece of Photo Etched parts - Details finely represented by newly tooled parts"