Tune kit for B26-2

[mchlquick]

Where can I get a tune kit for a  B26-2   I have heard that the R9 kit will not fit because of the Piston ID.  Would be helpfull if I could locate schematics !!!

[Kailua]

The B-26 have different compression tube sizes.  Not sure when or what year it changed but something that needs to be measured.  May want to talk to Mike Melick at Flying Dragon Airguns when the size is figured out. 

[mikeiniowa]

measure id of tube, 26.5mm is large, 25 mm is small, kit won't fit small size...