1988 A.G.P. (Anti-Gravity Pod) (Iron Grenadiers)
A.G.P. courtesy of the Yo Joe Outlet. Please visit them on eBay.
The A.G.P. features pivoting jet engines, perfect for vertical take off and landing (VTOL) maneuvers. 
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A.G.P. box photos courtesy of Page and Greg Wagner. Check out their eBay store for tons of vintage Joes!
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File card courtesy of Captain Chunk of OG13.
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A.G.P. blueprint/instructions courtesy of Tim Dz.
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