In the IH pg 187 it talks about force weapons, "Unless wielded by a psyker, force weapons simply count as a Good Craftsmanship Mono variant of their standard Primitive weapon type (see pages 128 and 142 of Dark Heresy). However, in the hands of a wielder with a Psy Rating, they are much more" my question is are all force weapons by default Good Craftsmanship? Why would a psyker be less accurate with a force weapon then a non-psyker?

By RAW, you are absolutely correct, and it's a fair question. If you're the DM, simply deem the force weapon to have not been made by some schmuck and make it good quality for free (seeing as how it cost many, many thousands of thrones) If you're not the DM, point this out in a happy-go-lucky-fashion and see how your DM replies to you. A good DM will likely discuss it with you to find a mutually agreeable comprimise.

All signs point to win.

Jeans_Stealer said:

Yup. Couldn't agree more.