Scale: 1/350

Recommended to help build USS Portland CA-33 from:

  • Academy 1/350 scale USS Indianapolis CA-35
  • Iron Shipwrights 1/350 scale USS Indianapolis CA-35 (1945)
  • Trumpeter 1/350 scale USS Indianapolis CA-35 (1944)
  • Trumpeter 1/350 scale USS Indianapolis CA-35 (1945)
  • Yankee Modelworks 1/350 scale USS Indianapolis CA-35 (1945)


This set of four Aft 20mm Oerlkon Tubs helps convert your 1/350 scale USS Indianapolis model kit to one of the US Navy's most decorated warships, USS Portland CA-33 as she appeared during crucial Pacific battles fought during the summer of 1942, Coral Sea and Midway.

This part has been designed to be adapted to any 1/350 USS Indianapolis kit.  Depending on which plastic kit you own, some modification to this part and/or the kit's parts will be necessary for best fit.  Acrylic plastic is very brittle.  Care is advised during adjustment.


  • Turret Three 20mm Oerlikon tub designed to conform to the turret's roof
  • smaller 20mm Oerlikon tubs compliment the Aft Superstructure (available separately) and straddle it
  • large, boxy splinter shield for two 20mm Oerlikons placed on the fantail
  • install two 20mm Oerlikon ready service ammunition lockers (included) in each tub (see the drawings in the photo carousel for precise positions)

Click here for a 1/350 scale USS Indianapolis to USS Portland conversion tutorial.

Model Monkey USS Portland CA-33 (1942) conversion parts:

  • 1/350 USS Portland CA-33 Forward Superstructure, 1942
  • 1/350 USS Portland CA-33 Forward Funnel and Aircraft Handling Deck, 1942
  • 1/350 USS Portland CA-33 Aft Funnel and Upper Anti-Aircraft Deck, 1942
  • 1/350 USS Portland CA-33 Lower Anti-Aircraft Deck, 1942
  • 1/350 USS Portland CA-33 Aft Superstructure, 1942
  • 1/350 USS Portland CA-33 Aft Oerlikon Gun Tubs, 1942
  • 1/350 8"/55 cal. Turrets - for USS Indianapolis CA-35, USS Portland CA-33 and Northampton class

© Model Monkey Book and Hobby.  This 3D-printed item may not be copied or recast.

1/350 USS Portland CA-33 Aft Gun Tubs, 1942

SKU: 350-CA33-AftGunTubs

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