Adding a light to a AR-15 is a great way to enhance the capabilities of any personal or home-defense setup, and the Midwest Industries SureFire QD Light Mount makes setting up a light on your AR faster and easier than ever. The Midwest Industries SureFire QD Light Mount was designed by the company to provide users with a smooth, easy-to-use quick-detach mount that is compatible with all SureFire M300 and M600 Series Scout lights. Made from 6061 aluminum Features hard-anodized black finish Weight: 1.5 ounces Center-to-center hole spacing: 1.1 inches The Midwest Industries SureFire QD Light Mount is also guaranteed not to damage the surface your handguard's rail and can be adjusted completely without the use of tools.