The 
Balystik Adapter (Macrohose to QD Male US)
 is a 2-in-1 HPA connector designed to bridge 6mm nylon macro hoses to US-standard quick-disconnect (QD) fittings. As of early 2026, it is commonly used to streamline HPA airsoft setups by providing a secure, leak-reducing connection between an HPA engine and the external air line. 
 
Key Specifications
Compatibility: Designed for 6mm nylon macro hoses and compatible with major HPA systems including Wolverine, PolarStar, and GATE Pulsar.
Fitting Standard: Features a US-type male nipple (often gold-colored in the Balystik range).
Incompatibility: It is not compatible with EU-standard (silver) fittings; QD standards are not interchangeable.
Maximum Pressure: Rated for up to 200 PSI.
Design: Compact, robust build including a quick-connect (push-fit) mechanism for the nylon hose and a male QD nipple for the HPA line.