[MARMIR]

Peacenluv,
1)...to reduce the gap all you have to do is screwing the mamba kit (the muzzle)
but bear in mind that this operation must be done with no pressure inside.
Don't screw it too tight otherwise you'll damage the handle.

2) just like you I don't like omer handle....I like stealth/sten handle: it is bigger,
the trigger mechanism is softer and I hv never heard of any problem occurred......
3) ...with an iside barrel of 11mm you can use 7mm and 8mm as well, usually
people who catch tunas with band guns use 7mm shaft.....
My english is poor but if you want me to help you communicate with Enzo.....no problem