To ensure optimal performance for your GBB replica, it is recommended to use the pressure ranges listed below.

Glock 17:

  • Plastic slide: 80 to 110 PSI
  • Aluminum slide: 110 to 140 PSI
  • Steel slide: 140 to 160 PSI

AAP-01:

  • 100 to 140 PSI

It's important to note that there is no universal PSI value, even though some misconceptions persist. When adjusting your pressure, several factors should be considered:

  • Slide weight and added accessories (such as an RMR optic) influence performance. Generally, the heavier the slide, the more power is required to ensure a full cycle.
  • Replica condition: Cleaning and lubricating moving parts, as well as the state of the springs (especially the hammer spring), also play a crucial role. Well-maintained parts will improve efficiency and durability.
  • Remaining air in your HPA tank: As the pressure in the tank decreases, the available pressure for your replica will also drop. This can lead to suboptimal performance, especially when the tank is running low on air.