Prevent bulky additions to your weapon while also expanding your list of compatible accessories. The Aero Precision AR15 Enhanced KeyMod Gen 2 Quad Rail Handguard is machined to Mil-Spec dimensions and engineered to perfection, providing a lightweight free float design that eliminates bulk while also retaining durability and stability. These AR Handguards & Forends by Aero Precision utilize a one-piece, free float design that ensures all components fit precisely, are securely fastened, and won't come loose under stress. The keymod system installed in the Aero Precision AR15 Enhanced KeyMod Gen2 Quad Rail Handguard provides a socket for a quick-disconnect sling, which is ideal for fast transitions. You can also fit multiple weapon accessories onto these platforms, and the continuous top rail allows you to position accessories any way you want. Equip the Aero Precision AR15 Enhanced KeyMod Gen 2 Quad Rail Handguard for a rugged mounting platform that will also allow advanced modularity past the current 1913 picatinny rail system. Specifications for Aero Precision AR15 Gen 2 Enhanced Quad Rail Handguard: Manufacturer: Aero Precision Fabric/Material: 6061-T6 Aluminum Gun Make: Aero Precision, AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Type: Free-Float Handguard Style: Quad Rail Gun Rail: Quad Rail Gas System Length: Rifle Length Mount Type: Picatinny Country of Origin: USA Attachment Type: Picatinny Quantity: 1 Features of Aero Precision AR15 Gen 2 Enhanced Quad Rail Handguard 1pc free float design Built in anti-rotation tabs Scalloped rails Continuous top rail 1.72in inside diameter (from barrel nut cut to forward end) fits most muzzle devices and 1.5in suppressors 1.78in inside barrel nut cut area diameter Compatible with low profile gas blocks Gen 2 Feature - Eliminated half of the 3, 6 and 9 o'clock picatinny rails, saving weight and providing a more ergonomic design in the rear gripping area Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal Gen 2 Feature - New profile for the continuous picatinny top rail Please note - This handguard is specific to the AR15/M4E1 platform. It is not compatible with the M5 .308/M5E1 platform. Package Contents: Aero Precision AR15 Gen 2 Enhanced Quad Rail Handguard