This Tokyo Marui Colt MK12 MWS GBBR "Lone Survivor" Custom is a more recent work by NextGen Retros. This custom gas blowback project includes a Nova M16A1 Lower, Tokyo Marui M4 Upper and internals, G&P M16A2 MWS Stock, M16A1 Grip from Brownells, MWC Frontset, Harris Style Bipod, and an M3 Style Scope.