Product Description The Ultradyne USA UD Arca Dynalock Rail adds a compact, rugged mounting interface to M-LOK compatible handguards, giving you the flexibility to run both Arca and Dynalock accessories on your firearm. Install the rail using the included M-LOK fasteners (or have it installed by a qualified gunsmith) and unlock compatibility with Arca clamp accessories-plus the popular option of using the Orbit Ballhead with Dynalock. Built from 6061-T6 aluminum and finished with a hardcoat anodized coating, this 3.00-inch rail is designed to deliver durable performance with minimal added weight. Product Highlights Arca + Dynalock compatible rail system for versatile accessory mounting M-LOK compatible design installs with included M-LOK fasteners 6061-T6 aluminum construction for strength with low weight Hardcoat anodized finish for enhanced wear and corrosion resistance Compact 3.00-inch length and lightweight 2.1 oz profile Specs Brand Name: Ultradyne USA Model: UD Arca Dynalock Rail Manufacturer Part Number: UD20080 UPC: 850043428435 Length: 3.00 in Weight: 2.1 oz Material: 6061-T6 Aluminum Finish: Hardcoat Anodized Color: Black Fit/Compatibility: M-LOK compatible; supports Arca clamp accessories and Dynalock accessories 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.