American Defense Manufacturing Stackable Block With MLOK/ARCA Black

American Defense Manufacturing Stackable Block With MLOK/ARCA Black. Weighing in at 1 pound each Gravity Blocks are machined from nitrided steel billet. Includes mounting hardware. YOU MUST HAVE M-Lok or QD base block to attach this weight to. Specifications for American Defense Manufacturing Stackable Block With MLOK/ARCA: Manufacturer: American Defense Manufacturing Color: Black Finish: Anodized Fabric/Material: 6061 T6 Aluminum Package Contents: American Defense Manufacturing Stackable Block With MLOK/ARCA American Defense Manufacturing AD-GRV-STK: Stackable Block With MLOK/ARCA Black