Photo Archive: Cobra Viper (Infantry) Posted by D_Martin on September 18, 2008 at 01:30 PM CST: Army building has always been a huge part of Joe collecting, and whether you are talking about the vintage or modern figures, the Cobra Viper (Infantry) is more the rule than the exception. Follow the above link to check out the next addition to our Hasbro G.I. Joe A Real American Hero Photo Archive feature.