Thanks guys!!
So it was time to make the barrel.....first I thought this was going to be just as easy as the earlier parts.....oh oh oh...I was wrong!!
Lets start with the drawing...

It looks pretty straight foward right ?
BUT...as you can see the barrel are made of parts 51 a and b and this only makes the inner part of the barrel.
The first part is to be twisted and glued to make the rills inside curl around....
As shown on the pic....
I had to really do some thinking here, and came up with a solution where I was to use small strips of silkpaper to connect the butts all the way around.
I got it together in a way, but it's not any pretty sight
So came the next stage...making the outer part of the inner part
That part went ok
The outer part of the barrel are made of several pieces as shown on the pic
Those parts are strairgt forward builds with a skin covering a ring in each end.I used a 4,5mm drill to align the different tubes.
The rear end, where the ammo goes in was next.
Great with laserparts
And an outside skin was to be put on.
So now the work to place all the details on the barrel starts...