MDT Double ARCA Weight 5in Black. Fine-tune the exact position of the weight to get perfect balance on any rifle with an ARCA rail. Specifications for MDT Double ARCA Weight: Manufacturer: MDT Color: Black Finish: Cerekote Fabric/Material: Cerakote Gun Type: Rifle Length: 5 in Width: 0.8 in Depth/Thickness: 2.7 in Package Contents: MDT Double ARCA Weight MDT 108272-BLK: Double ARCA Weight 5in Black