Do you have a UKARA number? Are you over 18? If no, then wait till you do/ you are, THEN get yourself a nice gun. £250 can get you quite abit though, so you have many options, which others on here are more suited to tell you about. It also depends; do you prefer CQB, woodland, or a mix? This is a main starting point on airsoft buying. Also, whatever you get, unless it's a pistol get an AEG.