Maple Leaf AST Macaron Airsoft AEG Hopup Rubber Bucking (Type: 50 Degree)

"This bucking seems quite nice, but it won't fit in my VFC stock hop-up. I was able to jam it in but that created air-seal issues and I ended up losing about 80fps and the shot placement was abysmal. No matter what I try, and my tech agrees, it won't fit my VFC.

"Poor Tolerances
Installed the bucking and bbs fall right through the feed lips causing double feeds and other issues. Took the bucking out and tested the feed lips and even with it removed from the barrel it still was way too wide, poor air seal even when nozzle was adjusted.