MK2 Outside WaistbandMKii Holsters are a nice balance for those that want a slim holster that works with Our Offset drop mounts, and with hole pattern options that work with Safariland or blade tech. Mkii series holsters are fully compatible and will clear pistol mounted red dot sights. The Mkii features a tension system which can either tighten or loosen the amount of passive retention the holster has. They can also be equipped with a level 2 thumb break rotating lock.