I've had one for a couple of months now.
Mines .22.
The magazine system is easy to use and works well.
The gun comes with a mount and scope.
Keep the mount and use a better scope.
There is no interference in your view.
The gun is accurate and likes Superdomes.
The main problem is noise right next to your ear but this seems to be getting less now it's wearing in.
I find it an interesting and pleasing gun to use and I now actually look at other Gamo models in our gun shops.
I don't know about the bolt.
Will have a look.