Ultradyne UD Arca Dynalock Rail Features The Ultradyne USA UD Arca Dynalock Rail merges two popular mounting systems into a single rail so shooters gain the benefits of both Arca and Dynalock accessories without having to choose one or carry separate hardware. One of the most popular uses of this compatibility is running the Orbit Ballhead with Dynalock though the rail supports any standard Arca clamp accessory as well. Hole spacing on the rail is strategically set to align with M-LOK fasteners so installation is straightforward using the included hardware. At 6.15 long the rail provides ample mounting surface for larger tripod heads and support gear without requiring a longer handguard section. Machined from 6061 T6 aluminum and finished in a durable hardcoat anodized black the rail measures 1.5 wide and 0.315 tall while weighing just 4.2 oz. This lightweight profile keeps the added mass to a minimum on precision rifle builds where every ounce affects handling and balance. The rail can be installed using the M-LOK fasteners provided or fitted by a qualified gunsmith for a more permanent setup. For shooters who already use Arca based tripods or Dynalock ballheads this rail eliminates the need to swap mounting hardware between different support systems in the field. Ultradyne UD Arca Dynalock Rail Specifications Manufacturer: Ultradyne Model: UD Arca Dynalock Rail Color: Black Mount Type: M-LOK Material: 6061 T6 Aluminum Finish: Hardcoat Anodized Length: 6.15 Width: 1.5 Height: 0.315 Weight: 4.2 oz Available At: GrabAGun