13kg spring for the ZWQ Fire Rat or Viper blaster.
Strongly recommend to upgrade the blaster to metal parts first.
Achievable FPS is 170.
Please check compatibility with blaster before buying.
Spring cannot be refunded or exchanged once bought.
Top grub screw for the zwq s400 selling as a set of 10 , this is slight shorter then the original below photo shown is actual item installed with no issue
Trade for GFZ 3 row BCAR in any colour(Space Grey or Silver is preferred)
*Price is a placeholder only
Meetups can be discussed preferably at MRT Stations
