Product Description The AREA 419 FIREARMS Arcalock 17-Inch Universal Flat Rail with M-LOK Hardware is a groundbreaking precision rifle accessory engineered to eliminate the friction-dependent shortcomings of traditional ARCA rails. The Arcalock system features serrated rail sides that interface directly with Area 419&';s proprietary clamp design, creating a mechanical lock that guarantees zero movement under pressure, including during demanding barricade stop scenarios. At 17 inches in length, this rail spans the full stock forend, providing extensive real estate for precision accessories. Machined from 6061-T6 aluminum and finished with a Type III Hard Coat anodize, every corner is radiused and every edge is chamfered for a refined, safe-to-handle profile. Built to the RRS 1.5-inch Dovetail Standard and fully backwards compatible with standard ARCA accessories, it is designed to attach to the rifle at up to four points for maximum strength and stability. Manufactured entirely in the USA from USA-sourced aluminum on USA-made CNC machines. Product Highlights Arcalock serrated rail sides mechanically interface with Area 419&';s proprietary clamp design to eliminate movement and prevent slippage under pressure 17-inch length covers the full extent of the stock forend for maximum accessory attachment versatility Built to the RRS 1.5-inch Dovetail Standard for broad compatibility with standard lever clamps and ARCA accessories Attaches at up to four points for superior strength and stability; M-LOK hardware and tee nuts included Type III Hard Coat anodized 6061-T6 aluminum with fully radiused corners and chamfered edges for durability and a safe-to-handle finish Specs Brand: AREA 419 FIREARMS MPN: 419-ALK-UNIV17 UPC: 810080181250 Color: Black Material: 6061-T6 Aluminum Rail Length: 17 inches Rail Width: 1.5 inches Rail Height: 0.4 inches Weight: 1.8 lbs Standard: RRS 1.5-inch Dovetail Standard Finish: Type III Hard Coat Anodized Attachment Points: Up to 4 Compatibility: Backwards compatible with standard ARCA accessories Includes: M-LOK hardware, tee nuts Country of Manufacture: USA 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.