Hi
Welcome to the forum.
As Gepard said the CM16 series is a good start.
But suggest before you look into buying a gun, try out airsoft, see what others have and what you like.
Most will be happy to let you have a look at their gun, if you ask nicely.
Also I would suggest hiring for at least 3 games. If you spread it over 56 days you can get your UKARA sorted and avoid buying a two-tone gun.
Cheers
G