BullGear – Hop-UP Camara m249 Featherweight / Cybergun

1) Rigid fixation of the stem in the chamber.

2) Ability to use standard rubber and rollers.

3) Smooth adjustment.

4) All metal parts are manufactured by CNC processing.

5) Material: Aluminum

6) Manufacturing method: CNC 100%

PS: It is recommended to use elastic rubber of  Prometheus