LCT LCK12 Tracer Unit (PK-421T)

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;

■ Can be compatibled with PK311 M14 to M24 Muzzle Thread Adapter;

■ Support green and red tracer BBs

If it non-LCT products，we can't sure compatible or not。

Fits on 24mm CW threads (common on some AK models).