Officially dubbed the Gilboa Snake by Israeli manufacturer Silver Shadow, we finally have some solid details about this double-barreled AR-15-based rifle. Strictly speaking, it’s more of a Personal Defense Weapon (PDW)-type Short-Barreled Rifle (SBR). The Snake is most notable for its twin 9.5-inch barrels and large matching compensators with jagged standoff teeth, but it should be noted that it’s also piston-driven.
The Snake’s proprietary piston system appears to use a single adjustable gas piston. That would make sense from both a weight-saving and space-saving perspective, but it is also necessary to use a gas piston system for the rifle to have one charging handle and to avoid having two buffer tubes. It’s clear that for this rifle to work, Silver Shadow had to clear some significant technical hurdles, as the Snake is fairly far-removed from AR territory.