Midwest Industries Combat Rail T-Series, Free Float Handguard, 15 Length, Quad Rail, Includes Barrel Nut and Wrench, Fits AR-15, Black Anodized Finish MI-CRT15 The Midwest Industries T-Series Combat Rail Handguard features Mil-Spec M1913 Picatinny rails, T-marked for accessory location, along its entire length. The handguard has been fully dehorned and deburred for user comfort, and features two anti-rotation QD sling swivel sockets. Comes with barrel nut, torque plate and barrel nut wrench. Midwest Industries is a proven leader in the firearm industry. Made in the USA, focusing on the small details to make your rifle platform better.