Rossi M4 Neptune SAS BLACK 10.5"

- Programmable Electronic Trigger with active Brake 

- 16:1 CNC gears with High ROF

- Piston with Steel teeth

- Bushing with 8mm bearing

- QD metal spring guide with bearings

- Piston head with bearing

- CNC aluminium nozzle with oring

- 10.5" CNC Handguard 

Colour: BLACK