Product Description The Ultradyne USA UD Arca Dynalock Rail is a compact, M-LOK compatible accessory rail designed to add versatile support and mounting capability to your firearm. Built from durable 6061-T6 aluminum and finished with a hardcoat anodize, it supports both Arca and Dynalock accessories-making it an ideal upgrade for precision and field setups, including compatibility with Arca clamp accessories and the Ultradyne Orbit Ballhead with Dynalock. Product Highlights Arca + Dynalock compatible rail for versatile accessory mounting options M-LOK installation using included fasteners (or install by a qualified gunsmith) Lightweight, rigid 6061-T6 aluminum construction Hardcoat anodized finish for enhanced wear and corrosion resistance Compact 6.15 in length ideal for streamlined forend mounting Specs Brand: Ultradyne USA Manufacturer Part Number: UD20081 UPC: 850043428442 Material: 6061-T6 Aluminum Finish: Hardcoat anodized Color: Black Compatibility/Mount: M-LOK Length: 6.15 in Width: 1.50 in Height: 0.315 in Weight: 4.2 oz Country of Origin: 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.