The MANTA Very-Low-Profile Rail Guard covers 6 inches of rail and creates an incredible tactile feel, while resisting the extreme heat generated during sustained or automatic fire. Guards can be cut to length for a custom fit and snap anywhere on a rail in seconds. The modular design of the Guard will interface with any Manta products, protecting any exposed rail area. Cover the top rail to eliminate sight picture mirage generated by the heat of the barrel. Heat transfer from the rail to your hand has become a thing of the past with MANTA Rail Guards. All MANTA products are produced from revolutionary materials that resist Extreme Heat, Chemicals and Abrasion! We are proud to say that this product is standard issue to Militaries around the world.