G&G MCP 556 WITH A Wolverine Inferno HPA Engine Gen 2 for AEG v2 - Premium
 
The G&G MCP 556 upgraded with a Wolverine Inferno Premium HPA engine keeps the MCP 556 tough polymer/aluminum hybrid chassis while swapping its stock gearbox for wolverine inferno premium HPA engine giving it a lightning - quick ultra - consistent trigger response tighter groups and smoother shot cycles far easier tuning for dwell/air pressure and reliable performance with heavier BBs & longer engagement ranges -  the best of a rugged speed-soft platform married to a top-end HPA engine for competition - ready accuracy and responsiveness.