Product Description The Aero Precision ATLAS R-ONE Handguard is the latest innovation in the Aero Precision handguard lineup, engineered for shooters who demand a lightweight yet rock-solid platform. Machined from 6061-T6 aluminum and finished in a durable black anodized coating, this 4.80" M-LOK handguard is purpose-built for compact, lightweight AR-15 builds. It features the proprietary Aero Taper Lock Attachment System (ATLAS), which employs two mirrored tapered locking nuts that distribute clamping pressure evenly across a custom-engineered barrel nut via a turnbuckle screw. A ratcheting detent further secures the system and provides positive registration during installation, effectively eliminating the handguard distortion commonly seen with competing designs. The full-length Picatinny top rail provides a continuous optics and accessory mounting surface, while M-LOK slots along the sides and bottom allow for versatile accessory placement. ATLAS Handguards are designed to mate seamlessly with Aero Precision M4E1 Threaded Upper Receivers and are also compatible with any mil-spec AR-15 upper receiver. Product Highlights Lightweight 6061-T6 Aluminum Construction: Weighing just 3.9 oz, the R-ONE handguard is optimized for size and weight without sacrificing durability or rigidity. Proprietary ATLAS Attachment System: Two mirrored tapered locking nuts and a turnbuckle screw deliver evenly distributed clamping pressure, preventing distortion and ensuring a rock-solid fit every time. Full-Length Picatinny Top Rail: Provides an uninterrupted rail surface for mounting optics, sights, or other accessories along the entire length of the handguard. M-LOK Accessory Compatibility: Multiple M-LOK slots at the 3, 6, and 9 o&';clock positions allow direct mounting of lights, lasers, grips, and sling sockets with no adapters required. Mounting Hardware Included: All ATLAS attachment system hardware is included in the box, making installation straightforward with no additional parts to source. Specs Brand: Aero Precision MPN: APRA500708A UPC: 840014615544 Series: Atlas R-One Length: 4.80" Material: 6061-T6 Aluminum Finish: Black Anodized Rail System: M-LOK Top Rail: Full-Length Picatinny Inside Diameter: 1.3" Outside Diameter: 1.5" Handguard Weight: 3.9 oz Mounting Hardware Weight: 1.9 oz Compatible Platforms: Mil-Spec AR-15 upper receivers; Aero Precision M4E1 Threaded Upper Receivers Not Compatible With: M4E1 Enhanced Upper Receivers; billet upper receivers (due to indexing tabs) Includes: Mounting Hardware Country of Manufacture: United States Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>