Apologies for the delay. SSW weapon mounts take up 1 slot.
For TM, pp. 347-348, implement the following changes:
Weight column, replace "Var**" with "0"
Weight Per Shot (Ammo) column, replace "Var**" with "NA"
Space Slots column, replace "Var**" with "1*"
Tech Rating column, replace "Var**" with "B"