Proudly Designed and Made in USA 15" M-LOK Super Slim Free-floating Handguard with Proprietary Barrel Nut Design Features 8 M-LOK Slots on 7 Slot Tracks for Mounting M-LOK Rails and Direct Accessories, Easily Tailoring the Rifle to the User's Specific Requirements Design for Standard Mil-spec AR15 Upper Receiver Super Lightweight with 37 Slot Picatinny Top Rail, Flush Fitting and Continuous with Flat Top AR15 Upper Receiver Providing Ample Real Estate for Optics and Other Accessories Includes 2 M-LOK Accessories, an 8 Slot Picatinny Rail Section for Accessory Mounting and a QD Sling Swivel Adaptor for Sling Swivel Attachment, Ready for Use Right Out of the Box Features Integral Anti-rotation Tabs for Accurate Alignment with the Upper Receiver while Completely Preventing the Handguard From Rotating Under Heavy Use Ergonomic Octagonal Profile with Grooved Surface for a Solid, yet Comfortable Grip for Fast and Seamless Firearm Handling Scalloped Top Picatinny Rail Edges for Easy and Snag Free Accessory Mounting Precision Machined from 6061-T6 Aircraft Grade Aluminum with a Two-tone Black & Bronze Finish Simple and User Friendly Installation with Included Easy to Follow Instructions, Barrel Nut Wrench, and Additional Installation Tools and Accessories Designed to Fit with Standard Gas Tube and Barrel Diameter Not Exceeding 1" Not Compatible with Piston System, Re-designed or Over-sized Upper Receivers