MI 14" COMBAT RAIL 1 PIECE FF HANDGUARD MLOK • 4140 Heat Treated Barrel Nut • Barrel Nut and Wrench Included • Features Patented 4140 Heat Treated Torque Plate • 14" overall length • 10.8 oz Installed Weight • 6061 Aluminum Type 3 Hard Coat Anodized • Continuous MIL-STD 1913 Picatinny Top rail • Two Integral Anti-Rotation QD Sling Sockets • Super Slim 1.5” Outside and 1.3” Inside Diameter S • Seven Sides of M-Lok • 5-Slot Polymer M-Lok rail included • Fully Dehorned and Deburred • 100% Made in USA- Keeps America Working • MI Lifetime Warranty