The Tiger Rock Inc. FSSM04V2 223/5.56 Rifle M-LOK 4" Super Slim Free Float Handguard combines durability and performance for the modern shooter. Crafted from aircraft-grade aluminum with a sleek matte black finish, this handguard enhances your rifle's aesthetics while maintaining a lightweight profile for superior handling. Matte Black Finish Inner Diameter: 1.3 in Total Weight: 7.2 oz Handguard Length: 4" Aircraft-Grade Aluminum One-Piece Free Float Design and Construction Full Length Picatinny Top Rail Super Slim Lightweight Design Optimize your shooting experience with the perfect combination of innovation and style.