The Tiger Rock Inc. FMLUS-4D AR-15 4.5" M-LOK Super Slim Light Free Float Handguard combines exceptional performance with a sleek design. Manufactured from durable 7075-T6 aluminum, it enhances your AR-15's maneuverability while maintaining reliability. This lightweight handguard boasts a one-piece free float construction and a full-length Picatinny top rail for versatile accessory mounting. With an internal diameter of 1.4 inches, its premium design showcases USA craftsmanship and quality. Handguard Length: 4.5" Solid 7075-T6 Aluminum Super Slim Lightweight design Full Length Picatinny Top Rail Made in USA One-Piece Free Float Design and Construction Internal Diameter 1.4" Color: Black Elevate your firearm's performance and aesthetics with this outstanding handguard.