I want to get a quad rail handguard for the AR. I was looking at this one from CTD. Its only $60... I know its not a true free float, but I dont care. http://www.cheaperthandirt.com/ARR138-54335-1887.htm So what are your opinions? What is the difference between that and some of the ones I see that are like $200. Im not hard on my gun at all, so im not worried about it breaking or anything.