The Creeper Concepts HPA M4 Adapter (EU Gen3) offers a robust solution for connecting M4 magazines to Action Army AAP-01 or compatible G17 series GBB pistols using HPA setups. Produced in Belgium using advanced SLS 3D nylon printing, this adapter is built for enhanced durability and impact resilience.
- Supports M4 magazines with left-side eject button
- Designed for operation between 90 and 120 psi
- Features an EU elbow fitting for improved handling
- Single stack BBs delivery
Pistol and M4 magazines not included. Compatible with selected Umarex, VFC, Cybergun, and WE G17 models.










