Includes: Top & Bottom rail sections, 4 Allen screws, Allen wrench Materials: 6061 Aircraft Grade Aluminum Compatibility: AR-15 Rifles with delta ring and front end cap installed. Weight: 12 oz Length: 6.7 in Height: 2.5 in Internal Diameter: 1.7 in Color: Black & Flat Dark Earth Warranty: Lifetime View Installation Guide Our two piece drop-in carbine length AR-15 quad rail handguard is a quick and easy install on any carbine length AR-15 rifle platform in minutes. Crafted from aircraft grade aluminum, both sturdy and lightweight. Standard picatinny rails allow the mounting of tactical accessories such as bipods, flashlights, and sights. Available in Black and Flat Dark Earth.