Adds to the look of the AR, gives the gun a meaner "stance" to it ! had to play a little with the washer to get a correct index and fit to parallel the front sights, but after that no problems! keep it tight and enjoy the enhanced flame, my AR is a SBR, and that enhances the flame even more!! good value for the price, and even with the current gun buying panic the flash enhancer was shipped within a reasonable time frame. Full auto with this is Kickass!