FAB Defense(R) Opposite Magazine Coupler Kit combines a magazine coupling system with two Ultimag 10-round magazines. The coupler positions the magazines in an opposite orientation to provide a paired magazine configuration. This kit includes the coupler and two compatible 10-round magazines with a black finish.Key Features Opposite-orientation magazine coupler configuration Includes two Ultimag magazines 10-round capacity per magazine Couples two magazines into a paired configuration Black finishFAB Defense(R) manufactures firearm components and accessories for a variety of handgun and rifle platforms. The company develops purpose-built products with an emphasis on functional design durable materials and firearm compatibility. FAB Defense products are manufactured with attention to fit practical performance and dependable operation.