For starters the M series (M4A1, M14, M16 ect.) are good starter guns, but make sure they are not spring powered. They break down very easily. The best guns are electric powered. Some people like yours truly like grenades and making in rain... That is me. There are many types of grenades make sure you get the ones that don't break. Get the ones like the tornado. It spins releasing all of its shots.
Air Soft knives count just like BB's, when you get hit you are out. They are $10 (At certain stores).
Pistols are key secondary weapons. Mine the Punisher 45 are good pistols. Make sure you get Green Gas has the power for your pistol. Most pistols are 15 to 24 shots. Some machine pistols have 48 to 58 shots and are fully automatic.
Pics
Below Right: Tornado Grenade. Below left: Air Soft Knife
Left: M4A1
Right: Punisher 45
