The Tiger Rock Inc. FSSK15 223/5.56 Rifle 15" Super Slim Light Keymod Free Float Handguard combines advanced engineering with lightweight adaptability, suitable for precision shooting and tactical applications. Crafted from high-strength 7075-T6 aluminum, this handguard offers a mere weight of 11 ounces, allowing shooters to maintain agility without compromising durability. Its 15" length enhances stability and accuracy during firing. 15" Extended Rifle-Length for improved stability Solid 7075-T6 Aluminum construction for durability Super Lightweight design at only 11 oz Hybrid Picatinny/Keymod Top Rail for versatile accessory mounting One-Piece Free Float Design to enhance barrel accuracy Includes barrel nut and necessary installation hardware Inner Diameter: 1.35 inches for standard setups This is a vital addition for any shooting enthusiast looking to enhance performance and versatility on their rifle.