For LCT various designs LCK except
AS VAL / MRK VAL / LGM VAL / VSS
◉These models should be assembled the PK404: LCK-12 / ZK-12 / ZK-12U / LCK-15 / LCK-19
◉ Support green and red tracer BBs.
◉ Support up to 30 PRS，no light decaying， missing lighting
◉ Auto shut off after idling for 40 minutes
Fits on 14mm CCW threads.
