Tag Archives: sig 556 gas system

SIG 556 SWAT Gas-Piston-Driven Tactical Rifle/Carbine/Subcarbine

by David Crane defrev at gmail dot com All photographic images contained in this article were taken by DefenseReview.com, and they are the exclusive property of DefenseReview.com. DefenseReview.com owns the copyright on these photos. All photos were shot with a 7.2-megapixel Sony Cyber-shot digital camera (Model #: DSC-P150). December 27, 2007 The February 2008 issue of Guns & Weapons for …

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