For those interested in purchasing a modded QB-78 in any of the models including the new QB-78D, I suggest that you get in touch with Mike in Iowa. In my opinion, there just isn?t anybody out there that does a better job on these than Mike. And? his pricing is more that fair. You get your monies worth and then some.
The cost of the parts kit is $11.00 per kit
The QB-78 .177/.22 parts kit consist of:
It also includes a Quik-Tune summary. The complete Quik-Tune guide can be downloaded here. Also, the two tune-ups at the top of this page, though very extensive, are applicable.