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Primary Airsoft GLOCK HPA / M4 Adapter




Primary Airsoft GLOCK HPA / M4 Adapter

Want to convert your Umarex/VFC Glock to HPA? Tired of buying multiple gas magazines, CO2, and Green Gas? Want to go from an average of 25 rounds per magazine to an average of over 120? Then check out the Primary Airsoft GLOCK HPA / M4 Adapter. To use it you will also need an M4 AEG magazine, “paintball” tank with low-pressure regulator (0-140) psi, a hose with a Foster (Polarstar) quick disconnect, and of course bbs. The normal operating pressure for green gas is roughly 120 psi depending on the temperature. We recommend that you run your pistol near this pressure and do not exceed 140 psi. Keep in mind that higher pressures can cause excessive wear and damage to the internal components of your airsoft pistol.


  • Custom design with laser-sintering
  • Converts VFC/Umarex Glocks to HPA
  • Accepts most M4 style AEG magazines


Material: Laser sintered nyolon
Compatibility: VFC/Umarex model Glocks
Color: Black
Gas Type: HPA