Guild Wars 2

I was wondering if there is any good builds for just using the rifle I have a problem with my hands so I cant switch kits out that easy and can you give me some advice on what armor to get as well I recently started to play engi so I am not there yet but I am lvl 80

standard static discharge build
http://gw2skills.net/editor/?fcAQFAUlIqyUX7SyF17IyoHdGpJagekX+1IKqQ+B-jgxAYfAyCQyrIasF3ioxqrxUuER1A-e

basically you just use your rifle kill combo net shot > jump shot > blunderbuss > overcharged shot and all your toolbelt skills to nuke things with the static discharge trait. as for gear use full zerk. if you can’t afford scholar runes, use ruby orbs.