Nine Ball Gas Route Seal Bucking Aero (2pcs) for Umarex (VFC) Glock Airsoft GBB Pistol

Nine Ball Gas Route Seal Bucking Aero (2pcs) for Umarex (VFC) Glock Airsoft GBB Pistol Rubber Construction Designed to Improve Sealing which Improves the Overall Efficiency and Performance of your Airsoft Magazine Made of Cold-Resistant Material to help Prevent Freezing of the Gasket, Reducing the chance of Gas Leakage from the Magazine Suitable For Umarex (VFC) G17 / G18c / G19 / G19X / G45 Series Airsoft Gas Blow Back GBB Pistol Airsoft Guns