scope

Ok, need a little help. Looking to put a scope on my AR. Not looking to do anything crazy distance wise. I've looked at a few red dot scopes and some people say buy on that is 2x instead of 1x. Being inexperienced in this area will a 2x be better with a red dot? Does it make a difference vs...

anyone have experience with the Spitfire 3x prison scope? I just ordered one, and it's really my first scope purchase ever but judging from the reviews it looks pretty good and solid but would like some community feedback too.