I would recommend you read the new to airsoft guide written by marksman (in my sig) and recommend you steer clear of GBB's (you would know if you read the guide)
Think you will regret your choice by having a Gas rifle, they require a lot more maintenance than an AEG hope your prepared with gas and mag costs aswell.
Ok, i linked you that magazine already so your clearly not paying ANY attention to what people are saying and you wont this aswell, they are not from the UK,