Samoon's Updated Kit for GHK M4
● CNC steel production.
● For GHK M4 series GBBR only.
● The kit includes three items: double sides selector / quick receiver pins / fixed fire control pins
● The products are designed to:
1. Allow user to remove the pins from receiver easily and quickly.
2. Prevent the firing control parts shifting and lost.
3. Double sides lever of selector is convenience for users left-handed.