Cant extract perk 1 and 2 slot from instance id

[WillHeather18]

I am developing a destiny 2 software and using the API and manifest i have succesfully got a list of weapons in a players inventory. I am able to identify the last 2 perks using the hash codes and comparing them to the manifest. However when i try to compare the other hashcodes to the manifest i cant find what barrel and magazine the weapon has rolled with. Does anyone know where i can find this information? I have attatched an example of a weapon object from a players inventory. example object.txt

[nev-r]