Midwest Industries Combat Rail Light Weight M-LOK Handguard, Fits AR-15 Rifles, 10.5 Free Float Handguard, Wrench and Mounting Hardware Included, 5-Slot Polymer M-LOK Rail Included, Black MI-CRLW10.5 The Midwest Industries Combat Rail Lightweight Series Handguard is a 1-piece design that features M-LOK accessory mounting slots along its length and short Picatinny rail sections at the 12 o'clock position for the addition of backup iron sights. This extremely lightweight design has a slim profile and is machined from rugged 6061 aluminum with a type 3 hard coat anodized finish. Comes with mounting hardware" barrel nut wrench and a 5-slot polymer M-LOK accessory rail. 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.