MADBULL Daniel Defense 9 inch DD Lite RAS - FDE About our handguard rails This handguard ras rail system is fully licensed by Daniel Defense. We are using the same manufacturing process with the Aircraft grade Aluminum handguard rail. With 1:1 dimension and affordable price, we guaranteed you don't want to buy the China copies again. Note: Our rail doesn't have holes for gas tube. Can't fit on real rifles. Features FOR AIRSOFT USE ONLY Licensed by Daniel Defense Inc. 100% CNC made 7.0 free float picatinny handguard High strength aircaft grade aluminium construction Barrel nut and mounting bolts included Barrel nut wrench is requried for installation “Bolt up” system allows rock-solid continuus upper rail platform DESIGNED IN U.S.A. BY J.C. MEMBER OF MADBULL DESIGNERS GROUP Description on Daniel Defense website The Daniel Defense AR15 Lite Rail 7 (Carbine Length) utilizes the Patent Pending Bolt Up System™. This innovative system gives the weapon system an uninterrupted upper rail platform and also allows the Armorer to install the rail system with simplified alignment to the upper receiver. Not only does this battle proven system provide features that no other rail system on the market possesses, but it is also the lightest rail system available.