Airtac GHK M4/G5 to M4 HPA Adapter — Modular, Plug-and-Play

Effortless HPA integration for GHK M4 and G5 platforms. This modular adapter delivers plug‑and‑play performance for players who demand reliable power and quick field setup across semi and full-auto modes.

• Compatibility: Works with G5 and GHK M4 variants on both semi and full auto.
• BB retention mechanism: Reduces BB loss during magazine changes, helping you maintain consistency in rapid-fire engagements.
• Fittings: US Style Fitting as standard; swap to EU 6mm push‑fit disconnect (sold separately) to fit your setup.
• Pre-fitted components: No valve, gas router, or feed lips required—parts are pre-fitted and ready to install.
• Modular compatibility: Designed to work with modular drum mags and MP5 bases (sold separately) for versatile loadouts.
• Safety and operation: Do not exceed 150 PSI with any HPA adapter; always regulate air with a secondary regulator (e.g., AT200, Wolverine Storm, PolarStar MRS) and check PSI before connecting.

The adapter stands out by offering a complete, ready-to-use HPA solution that eliminates common setup headaches. Its modular design invites you to expand with our drum and MP5 bases, so you can tailor your loadout to different playstyles or game formats without swapping hardware. The built-in BB retention minimizes losses during mag changes, giving you more consistent performance in the heat of battle. For best results, pair with a secondary regulator and stay within the 150 PSI limit to ensure safe, stable operation across both semi and full-auto shooting.