Your AR-15 handguard has huge implications in terms of how much you enjoy your shooting experience. This IRS handguard offers more than just the accuracy enhancements that come with a free-floating rail. It features a modern design and is machined from high-quality aluminum giving it the capability to handle the hardest use and abuse of tactical and competitive shooting. With four full-length picatinny top rail that sits flush with M4 flat top receivers allowing you to have more space for optics and back up iron sights. This AR-15 handguard has a hard coat anodized black finish and features anti-turn millings that prevent turning even at the hardest use.