This CNC Aluminium Hopup Chamber is machined with precise CNC tolerances from monolithic Aluminium for improvements in stability, durability and overall performance.

FPS can be increased with this hop unit, with tests showing an increase of between 5-15 FPS.

It is a unique design with an upper adjustment knob, making it easy to adjust your hop without removing the upper.

Included:

1 x CNC Aluminum Hopup Chamber

Usage:

Use for Action Army AAP-01/C