Good evening all,
Summary / Setup
I recently built and upgraded a CyberGun P90. Key specs: fitted with a Perun MOSFET (default settings, calibrated), running a Turnigy Nano-Tech 3S 1200 mAh 11.1 V LiPo (T-connector), and upgraded inner barrel / hop rubber / nub (ZCI barrel, Maple Leaf rubber).
Problem
When on full-auto, the gun fires normally when I press the trigger, but when I release the trigger it continues firing for 1–2 seconds before stopping. It feels like a delayed cut-off. Small bursts (short presses) behave normally; the problem only occurs if I hold the trigger for a few seconds. This is dangerous in skirmish use because the gun keeps firing after I’ve released the trigger.
What I’ve ruled out / notes
The behaviour is reminiscent of old triggerbar/contact stickiness, but this build uses a Perun MOSFET.
MOSFET is at default settings with calibration done.
Happens reliably on full auto after holding the trigger for several seconds; short bursts are usually fine.
I can supply a short video showing the issue if that helps — tell me what you’d like captured (angles, slow motion, closeups).
Thanks for your help