Diamondhead VRS X 15.0 Free-Floating Versa BaseDiamondheads innovative VRS X Free Floating Handguards offer an uninterrupted rail extension and handguard in perfect alignment with the host weapons flat top receiver. The X rail replaces the factory delta ring and barrel nut. The VRS Free Floating Handguard System provides the same flexibility of use as Diamondheads renowned V-RS Drop-In System. Simply attach rails and bumpers to the VRS for the required rail-mounted accessories. Features:- Designed to give a factory installed appearance to the rifle. - Requires removal of both delta ring and factory barrel nut and ?replacement of front sight with low profile gas block- Propriety replacement barrel nut included with rail that allows ?for easy installation and elimination of barrel nut timing issues - Mounts on barrels with low profile gas block, or can replace ?fixed front sight (basic punch, hammer) with a low profile gas block (not included)- Comfortable round shapeSpecifications:- Fits: All M4/AR15/M16 Variants- Sturdy, lightweight free float design- Improves accuracy and provides exceptional airflow to ?keep barrel cooler - Flush mounted top rail giving a monolithic appearance- Lightning fast configuration changes- Uninterrupted mounting surface for optics or ?other accessories. - Improves comfort and ease of shooting while allowing for ?personal modification with rail accessories (rails & bumpers)- Customize for specific applications- Add more rails as additional accessories are needed- Mix full length and short rails and bumpers to suit- Proprietary clamping system for rigid, secure attachment- Mil. Std. 1913 Picatinny rail dimensions- Mil. Spec. Type III anodized 6061 aluminum construction- Combat durable