Area 419 ARCALOCK Universal Dovetail Rail Features The Area 419 ARCALOCK Universal Dovetail Rail is machined from 6061 billet aluminum a material chosen for its strength while keeping overall weight to a minimum. At just 1.5 ounces it is designed as the lightest smallest rail in the ARCALOCK lineup ideal for shooters trying to keep their rifle s overall weight down. The rail fits forend hole spacings between 2 and 3.5 inches giving it broad compatibility across many handguard patterns. A Type 3 hard anodized finish in black protects the rail from wear while keeping its profile clean and understated. Included T-nuts and hardware make installation straightforward and the mounting options allow the rail to be positioned closer to the magwell for use with a tripod. Measuring 4.25 inches long the rail provides just enough real estate for a sling mount light or similar small accessory without adding unnecessary bulk. Note that M-LOK hardware is not included so shooters should have their own M-LOK screws on hand for installation. For shooters seeking the lightest possible accessory mounting option the Area 419 ARCALOCK Universal Dovetail Rail is available for sale at GrabAGun. Area 419 ARCALOCK Universal Dovetail Rail Specifications Manufacturer: Area 419 Model: ARCALOCK Universal Dovetail Rail Color: Black Material: Aluminum Finish: Type 3 Hard Anodize Length: 4.25 Height: 2.50 Width: 2.50 Includes: T-Nuts / Hardware Weight: 1.5 oz Available At: GrabAGun