The 3.7 cm/L83 SK C/30U was designed for use on U-boats and was used on a "wet-mount."
Ship Class Used On: This AA weapon was used on almost all ships of World War II,
S-Boats: Ein LC/34
U-Boat Single: Most U-Boats: Ubts LC/39
Real scaled from original.
Hollowed to saved material.
If you need a different size or a custom part designed just for you?
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Some part cleanup will be necessary. Water-based acrylic paints meant for plastics is strongly recommended. Other paints, especially enamels, may not cure on Frosted Detail 3D-printed plastics.