Watchtower Firearms M7M 15in Handguard Black. Made from 7075-T6 Aluminum this is one of the lightest yet strongest handguards on the market. Designed with Lena Miculek for the Competitive Circuit 15" in Length with 1.33" Diameter Top Rail has Been Removed and Beveled for Comfort Wide Flats at 3 6 and 9 o'clock for Barrier Support Manufactured from 7075-T6 Series Aluminum 1 Piece Free Float Design Stainless Steel Barrel Nut and Mounting Hardware Included M-LOK Top Side and Bottom Rail Mounts Type III Class 2 Hard Coat Anodized Finish. Specifications for Watchtower Firearms M7M Handguard: Manufacturer: Watchtower Firearms Color: Black Finish: Anodized Fabric/Material: 7075-T6 Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Length: 15 in Gun Rail: M-LOK Weight: 1 lb Included Accessories: Standard Country of Origin: USA Quantity: 1 Package Contents: Watchtower Firearms M7M Handguard Watchtower Firearms M7M-15-BLK: M7M 15in Handguard Black