20-MM ANTIAIRCRAFT GUN MOUNT
MARK 4 MOD. 3
All parts listed in this group with the exception of those marked by an asterisk (*) are new and are used only on Mark 4 Mod. 3 mounts.
All other parts used on this mount are listed in the Mark 4 Mod. 2 mount parts list on pages 135 to 161.
Parts of the Cradle group are listed in the Mark 6 mount parts list on pages 179 to 181.