MCU Wire Harness (Universal) - 18" - HPA System receiver The system is a drop-in

The system is a drop-in cylinder replacement that is universally compatible with a wide range of gearbox versions that have center-line nozzles

Consistency +/-

Min Output Pressure 40 PSI Max Output Pressure 130 PSI  (~200 PSI with HP Spring

Therefore if it was running whenever the trigger was depressed it would wind up the spring faster than the BB's are being fed into the gun so the spring would constantly be ratcheting which can cause it to break

MCU Wire Harness (Universal) - 18" - HPA System receiver The system is a drop-inMCU Wire Harness (Universal) The MCU wire harness is intended for use with REV3 FCU's that feature the built in MCU (Motor Control Unit) for running the replica's box magazine. This model is intended for custom wiring and is equipped with the ZH series connector at one end which attaches to your FCU while the other end is left bear for soldering or splicing into your magazine motor or existing wire harness. Please note: For magazines which are