This all ABS polymer fast reload 12-gauge shell holder fearutes a built in spring system to automatically feed each shell to the bottom of the carrier for quick access. Holds up to 10 rounds. MOLLE compatible, can be equipped to your belt, vest, backpack, etc. All polymer construction makes this device extremely durable. Best suited for hunting, law enforcement or military application. Available in black, army green, coyote brown, red, and transparent. Top quality and value.