Scale: 1/144    

Set includes 4 mounts (turrets) with barrels (2 "double knuckle" and 2 "single-knuckle").


Among naval historians, the US Navy 5"/38 caliber cannon is considered the best intermediate-caliber, dual purpose naval gun of World War II.  These models represent the four steel-top 5"/38 cal. Mk.30 mounts fit to Sims class, Benson class and Gleaves class destroyers before 1944.  Please consult your references to know if this type is correct for your model.

Two of the mounts in this set represent the "Double Knuckle" configuration, which had a reinforced roof with two "bumps", called "knuckles", that resisted blast from another 5-inch turret firing overhead.  The other two mounts in this set represent the "Single Knuckle" configuration, which did not have roof reinforcement. 


Of the four 5-inch/38 Mk.30 single mounts normally fit to a Sims, Benson or Gleaves class destroyer, two "Double Knuckle" heavyweight mounts were carried, one in the foremost position and one in the aft most position on the main deck, known there as "Mount 51" and "Mount 54".  The other two mounts were "Single Knuckle" mounts, positioned above deckhouses, and were known as "Mount 52" and "Mount 53".


Compared to the later versions, the early versions, reproduced here, appeared sometime before 1944, had a different arrangement of stiffeners on the front of the gunhouse, fewer fasteners on access hatches, differently shaped shell ejection chute, and a differently positioned equipment box.  



  • overall dimensions and details scaled from official US Navy O.P. 1112 drawings dated March, 1945 and measurements taken from a surviving Mod.41 and Mod.60 mount aboard the museum ship USS Kidd DD-661
  • details were confirmed by careful study of photographs of early Fletcher class destroyers
  • mount can be made rotatable and the gun can be positioned at any realistic elevation
  • an accurately shaped asymmetrical gunhouse (turret)
  • accurate, offset gun opening
  • forward face stiffeners
  • detailed turret bottom supporting structure with accurately placed bolt-head detail
  • rear vent
  • detailed gun captain blast hood, fit to the right side of the "double knuckle" mounts' roof as they were during World War Two

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

Model Monkey 5"/38 cal. Single Mounts for Fletcher class destroyers:

  • 5"/38 cal. "Double Knuckle" early heavyweight (set of 2) - for "round bridge" Fletcher class
  • 5"/38 cal. "Single Knuckle" early lightweight (set of 3) - for "round bridge" Fletcher class
  • 5"/38 cal. "Double Knuckle" late heavyweight (set of 2) - for "square-bridge" Fletcher class
  • ​5"/38 cal. "Single Knuckle" late lightweight (set of 3) - for "square bridge" Fletcher class
  • Ring Stands for 5"/38 cal. Single Mounts (set of 5)

1/144 Sims, Benson and Gleaves class 5"/38 cal. Mk.30 Mounts, early

SKU: 144-Sims-Benson-Gleaves-5in38-mounts-4