Aero Precision ATLAS R-ONE Handguard M-LOK M5 12 inch 6061-T6 Aluminum Anodized Black. Machined from 6061-T6 Aluminum the R-ONE line of handguards are designed with size and weight in mind providing the perfect handguard for your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. ATLAS The new Aero Taper Lock Attachment System (ATLAS) is both functional and aesthetically pleasing. It features 2 mirrored tapered locking nuts that provide evenly distributed clamping pressure across a custom engineered barrel nut with use of a turnbuckle screw. A ratcheting detent further secures the design while providing positive registration during installation. By design the even pressure of the ATLAS system avoids distortion of the handguard often seen with current applications during installation. Specifications for Aero Precision M5 ATLAS R-ONE M-LOK Handguard: Manufacturer: Aero Precision Gun Type: Rifle Handguard Type: Free-Float Handguard Style: Hybrid Rail Outer Diameter: 1.5 in Mount Type: M-LOK Country of Origin: USA Features of Aero Precision M5 ATLAS R-ONE M-LOK Handguard Full top picatinny rail for optional attachments Quick disconnect sling socket at the 3 6 and 9 o'clock positions Compatible with low profile gas blocks Compatible with AR308 upper receivers and barrels NOT Compatible with M5E1 Enhanced Upper Receivers Package Contents: Aero Precision M5 ATLAS R-ONE M-LOK Handguard Aero Precision APRA538704A: ATLAS R-ONE Handguard M-LOK M5 12 inch 6061-T6 Aluminum Anodized Black