when you done with one blueprint .
example the 20-25 .
to find out the new armor (base only) weapons and shields ;
it's not located on the labs .
You need to refit a ship or build one to access the new weapons/shields .
Armor is for base so u need to view components and change them.
also there is no way to upgrade those , you need find the next blueprint serie ;
here the 27-33 .
picture 1= a venom with tow thermal beam .
picture 2= the lower button looking like biohazzard is where your can find the list of blueprints .