I gather the copper in first lot acts as a heat sink to try and combat any affect on the heat treatment of the parent metal, looks good I gather the selector has to be gated for repetitive and not F/A mode.
I envy you, in the US being able to have things like that.
If I lived there I'd be broke as, but I would have a gaggle of F/A's and suppressed weapons and .........! well the list is endless although I don't think I'd need a Tiger tank!![]()