Guntec USA AirLok Series M-LOK Compression Free Floating Handguard w/Monolithic Top Rail 9in Bronze. The AR Handguards & Rails by Guntec USA has three sides with M-LOK rail slots that abut onto the Receiver Side Rails and Rail Panels. The Tight fit up against the Receiver of the Guntec USA AR15 Handguard allows for a monolithic Picatinny top rail that is perfect for mounting all of your favorite attachments. The Air-LOK design of this free floated Handguard from Guntec USA provides a secure tight fit against the Barrel Nut and is locked down with 4 screws - making it highly reliable and durable. The handguard has a right and left side machined QD swivel socket that is perfect for mounting a variety of accessories. For a lightweight easy to install and highly rugged Free Floating Handguard choose the Guntec AR15 Air-Lok Series Handguard. Specifications for Guntec USA AIR-LOK Series AR-15 M-LOK Compression Free Floating Handguard: Manufacturer: Guntec USA Fabric/Material: T6 Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Type: Free-Float Gun Rail: M-LOK Condition: New Mount Type: M-LOK Features of Guntec USA AIR-LOK Series AR-15 M-LOK Compression Free Floating Handguard Triangle / Diamond Skeletonized Cuts Throughout Handguard to Reduce Weight Rail Slides Over Barrel Nut And Is Compressed Down Against Receiver With 4 Screws Tight Fit Up Against Receiver Which Allows For A Monolithic Top Rail Heavy Duty Package Contents: Guntec USA AIR-LOK Series AR-15 M-LOK Compression Free Floating Handguard Proprietary Barrel Nut Included Guntec USA GT-9ALC-BRZ: AirLok Series M-LOK Compression Free Floating Handguard w/Monolithic Top Rail 9in Bronze