Your first Airsoft gun is essentially your first link to the Airsoft world. It is of utmost importance to chose a weapon that suites your needs, as it will be with you for most of your beginning Airsoft games.  You will most likely want to start with a AEG, as they are the most abundant in the Airsoft gun market. Their ease of use is much more suited to beginner players compared to Gas Blow-Back models.