Here are a few Lapco Piggybacks which I will be listing in the week to come with a few other lapco parts.
These brackets can be used to mount either two bottles as seen in the scan from Paintball Magazine (October 1992) or used to mount a duckbill asa under a T stock. The tanks are typically set up with on off valves so air is not lost.
Skip Swift, of Swift Line Industries was one of the original East Coast Sniper 2 and Autococker innovators in the early 1990s. In the years after the introduction of the Autococker he worked on Bob Long and the Ironmen's paintball guns. He also produced parts and accessories in the early 1990s out of Connecticut.