Element Airsoft Shim Set for Airsoft AEG Gearbox Hunting Accessories 0.2mm X6 / 0.3mm X6 / 0.5mm X6 GB0911
https://www.vogueparade.com/shopping/EN/100005571/6/32957511447/element-airsoft-shim-set-for-airsoft-aeg-gearbox-hunting-accessories-02mm-x6-03mm-x6-05mm-x6-gb0911//