Trinity force greatness - Trinity Force Atlas Series M4/AR15 Keymod Free Float Handguard

I originally purchased this handguard because it was on sale at optics planet. I did a search on google and found a few YouTube videos of guys building guns with Trinity Force parts attached. The information in those videos can't compare to how awesome this thing is when you get it. The quality is A+. I rated the handguard a 5 star because it is actually that good but ONE WORD OF CAUTION. Be sure that your upper receiver is mil-spec or be prepared to do a bit of grinding. Overall i'd recommend this handguard to those who like to save a buck, want quality for their money, and aren't caught up in all the brand-fan AR15 hype.