Gas-Blow-Back (GBB) Airsoft Magazines feature seals to contain the Airsoft Gas within. These Seals can degrade with time and will need replacing to return the magazine to peak-performance.
Gas-Blow-Back (GBB) Airsoft Magazines feature seals to contain the Airsoft Gas within. These Seals can degrade with time and will need replacing to return the magazine to peak-performance.
