Hardware to support two side-mounted tanks on the SMS systems. Top bolt snap is a safety clip, a redundant point of attachment in addition to the bungee which wraps around the tank valve. This clip connects to the shoulder D-ring on both the left and right sides of the SMS harness. The lower clip is secured using the cam band and tri-glides and connects to the appropriate rail on the butt-plate. Includes (2) stainless steel cam bands, (2) stainless steel tri-glides, (4) 4.5" (11.4 cm) stainless steel bolt snaps, nylon line to secure bolt snap to tank, and bungee. Stainless Steel Cam Band Assemblies are constructed from 2" (5 cm) wide durable nylon webbing with a box-stitched stainless steel cam buckle for extra strength. The bolt snaps have spring-loaded gates for easy operation and positive retention. Snaps are equipped with 360° degree swivels.