A very old option parts for old kits, but you will be surprised that some parts of it can still be used by newer mobile suit kit.
Weapons for Mobile Suit Z Series is a set of classic weapons and accessories for use with the late 80’s 1/144 Z Series Gundam kits. The main reason why I bought this kit is when I learned from Kakarot197’s review of HG Hi-Zack that certain weapon part in this kit can be used with the High Grade Hi-Zack, in the video he explained that there is a certain peg implement at the back of HiZack that allows it to hold on to a compatible weapon, and to his surprise this 80’s old Weapons for Mobile Suit Z Series is compatible as though it is made for each other.