Calibre swap procedure advice

[Robs5230]

Could anyone explain the exact process to effect a calibre swap on an early mk1.

I've had rapids on and off since 1993 and never worked on one. 

I have a .22 one here and a .177 barrel to go on it. I'd like to try and do it myself before sending it to Kevg who may have to finish it off 
Thanks

[KevG]

just a matter of fitting barrel and probe.you will also need to mod the bottle adapter for extra air flow as the smaller calibre is les efficient and needs a little more air.
KevG

[Remchester]

The basic stuff is easy enough ie swapping barrel and probes as kevg has said it's the setting up you could need a hand with but over all I'd say go for it that's what most of the fun is for me with the rapids you learn a little more each time you tinker!👍👍

[Robs5230]

just a matter of fitting barrel and probe.you will also need to mod the bottle adapter for extra air flow as the smaller calibre is les efficient and needs a little more air.
KevG

Looks like its coming straight to you then Kev.
You'd have had it anyway at some point
I'll give you a bell Monday so chat about it. I could do with getting it up pretty quick.
Cheers Rob