Laylax Nine Ball Enhanced Rubber Magazine Gasket for Airsoft GBB Pistols (Model: ISSC M22, SAI BLU, Lonewolf)

"Put it in a green gas mag and hpa tapped mag. It in both cases reduced fps, increased gas consumption making it a terrible replacement for the we-tech gasket. Instead use the armorer work blu series(g-series) red gaskets. Best gaskets I can find for a Sai Blu (g-series) pistol