I'm hopefully going to buy a hawken rifle kit from the USA, then get the barreled smoothbored so it can go on a SGC. I have a friend who can do this for free The only thing is, the barrel comes with a touchhole installed, but the gun is in kit form, so not a working firearms, untill you build it.

What are the Laws regarding this? I see it as a bit of a grey area.

Any help would be great.

Thanks