Brand: Sniper 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: 10 oz Length: 6.7 in Height: 2.5 in Internal Diameter: 1.7 in Color: Black Warranty: Lifetime Our two piece drop-in carbine length LR-308 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.