Kromlech have released a set of 28mm large vehicle hatches.
From their announcement:
Welcome back after busy Christmas/New Year time. After a long silence from our side we have at last some new releases ready.
First of them is new addition to Vehicle Bits range – Large Hatches. Both round hatches match hatch holes in most popular vehicle kits nicely. Square one can be glued on any flat surface (it can be used as a storage box as well).
Designed by Marcin “Majster” Szmyt.