5 tooth piston

CNC gearbox can be installed only in airsoft replicas with Tokyo Marui compatible standard

Material: CNC Machined

and therefore the guns velocity

Speed Airsoft HPA M4 Standard Tunable Trigger Style:Flat 5 tooth pistonThe new SPEED Airsoft HPA MOSFET M4 triggers released are designed to work with Polarstar HPA conversion systems. The SPEED HPA MOSFET M4 triggers incorporates dual adjustment set screws which will enable a trigger pull under 1mm with ease. The SPEED HPA MOSFET M4 triggers also includes a specially designed coil compression spring that reduces the pull tension, so players with the Polarstar systems can rip off lightning fast strings easily even in