QUAKE SHOOTING BAG MED REAR The medium triangular bag is a great all-around shooting bag, which can be used as a smaller front bag, or even a rear bag for reliable stock support. Containing our very own in-house mix of waterproof filler, our Quake shooting bags are available in three popular sizes for multiple uses and rock-solid support for any hunting or shooting situation. Each bag is made of a water-resistant briar proof fabric.