I just email them today. I got a email back they are busy with all the emails they getting so gonna be much later than usual. Has anyone made contact and get any info as when they will be shipping them out or can we place order now?
FX has stated all impacts can be upgraded.
They fit all impacts. All impacts use the same valve housing OD. The threaded portion is a larger diameter on the MKII to match the MKII air tube. Once they copied my eccentric design there was no more need for threads on the valve housing. The new valve housing just has a shoulder that registers inside the eccentric plenum's rear plug. That's why they include a valve housing with the kit, so it fits all versions now.
Thanks for the great explanation. Good to know. The next question is where can I pre-order one in the US?
The best move FX USA could make would be to sell these kits through Palm Beach Airguns to get customers quick dependable service with no BS.