These drop-in, polymer handguards for the AR15/M4 are fully mil-spec and perfect for that USGI look. They offer aluminum heat shields on both the upper and lower halves, providing heat protection for your hands. The Carbine Length handguard includes dual-layered, melonite coated head shields for increased protection. Specifications for Aero Precision Plastic Handguard: Manufacturer: Aero Precision Color: Black Finish: Melonite Fabric/Material: Polymer Gun Make: Aero Precision, AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Type: Free-Float Handguard Style: Hybrid Rail Gun Rail: Standard Gas System Length: Rifle Length Condition: New Country of Origin: USA Package Contents: Aero Precision Plastic Handguard