MK11 Inside Waistband w/ LightIntroducing the ADR MK11: Lightweight, Secure, and Concealed Like Never Before Handcrafted and individually made with professional input from Threat Cadre, the ADR MK11 sets a new standard in concealed carry. Each holster is meticulously hand tested to ensure the highest level of quality and performance. Employing a gram strategy, we eliminated all excess bulk and materials to cut weight, resulting in a design as slim as a non light bearing holster