You asked for it, here it is. This is our custom blended filler that we use in our bags. Our company started on the notion that a flowing filler is not a stable filler. While other makers were looking for fillers that flowed we created one that does the opposite. Why would you want something slippery under your rifle? Our fill locks together when pressure is applied and somewhat imitates sand in the way it conforms and reacts to obstacles. We use different ratios of the filler depending on the purpose of the bag. This blend is optimized for barricade bags. The large size will fill most full size barricade bags and the small will fill the miniature versions. The exact weight is TBD but will be roughly the same as the original weight of your bag with standard fill.