Sylvan Arms QDR200: This incredible Sylvan Arms Quick Detach sling mounting section allows for ease of attaching and detaching a sling mounting point on an M-Lok rail without using tools within a matter of seconds. This model is designed to fit only M-Lok rails and features a QD attachment point and a traditional clip-on sling style. This sling attachment point is fantastic for increasing the modularity of whatever platform you are using and allows the end-user to place and move their sling along the handguard quickly. A 2-year warranty from Sylvan Arms backs this product.