For the builders who want to display the ammo and avionics bays open, Legend has made the set for you.
They provide Photo Etch for the walls of the bays and the finer details.
Replacement bay doors are provided.
The avionics bay.
For comparison.
Gallon water jug isn't provided by Legend.
The ammo bay.
A AH-1Z bay with the ammo chute covered.
The ammo chute of an AH-1W.
The set is nicely done, a minor gripe is that the back of the avionics bay would be visible when the ammo box is removed and Legend has cast the back of each bay as a wall. This was done due to the limitations of resin casting and isn't a major problem.
I got my set on eBay, but it might be available from online stores.