How can I search for items with a specific strange part?

[NEONSKY #TeamPyro]

I couldn't find any advanced search function on backpack.tf. Please help me!

[Findiculous]

Short answer - you cant.

 

You would be better off buying the item and part separately. More expensive but if its what you really want then it shouldnt matter about the price

[Hipsta Jayzus]

Look in my BP I might have it lol

[=TNW= Maximus™]

you can't, but if you really want a specific part, just look for the part and put it on a weapon you want.