The real steel SG 552 Commando is a compact rifle released back in 1998. In addition to a relatively short barrel and a 3-prong flash suppressor, there is a ventilated handguard system and also a bolt carrier group integrated with the piston rod. The SG556 is primarily for the American civilian market which requires a partially made-in-US version of the popular SG series. It has a much longer overall length but it lacks fullauto capability. This training book has been developed from the ground up for beginners who know little about Airsoft AEG technology. As part of our Airsoft Technology Self-Paced Training Series, this book gives an introduction to the basic SG552/556 AEG architecture. The primary goal of this book is to explain the various AEG technical concepts in very simple language. We believe that this book and its support materials have everything you need for an informative, interesting, challenging and entertaining Airsoft educational experience.
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