Variant: small
No gun, for DIY
Variant: medium
28mm scale vehicle model conversion APC turret with x2 gyroject guns.
Variant: large
28mm scale turret for Zerber APC (machine gun + scatter laser gun).
Unofficial model, compatible to 40k Chimera tank body
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Free download Zerber chassis:
https://www.thingiverse.com/thing:1789712