You are buying a bevaer tail attachment only, in BLACK color, 500d cordura.
This is a hand-made removable beaver tail.
It fits most packs that have a webbing row on the bottom and something high on the sides to hook up (molle or tabs). It fits Mystery Ranch ASAP, 1DAP, 2DAP, 3DAP and other packs with standard milspec molle on the face and sides. If you want to cover Blitz pockets that's a good option (check pics)
This model is reversible: zippered access on one side with daisy chain on the other. Daisy chain is compatible with pouches/packing cubes that I offer for a Dragon/Spartanology packs.
Put small items right into the tail. Stuff larger things under it.