ADR 6 Second MountADR MKVI for Glocks equipped with the ALG DEFENSE 6 Second Mount. The MKVI Offers the user the flexibility to choose between the ever popular Offset Belt loop mount available in 4 belt loop sizes, or the possibility to use the MLS bolt pattern from Safariland. The Drop Mount offsets the gun in line with the top of your belt line. The MKVI has an adjustable tension bar to customize fitment, its designed with a thicker heavier duty Kydex for durability