This is the correct retro upper for an early Vietnam-era M16A1 clone: a complete Mil-Spec M16A1 carry handle upper receiver, finished in the period-correct gray anodizing that matches original Colt Model 603 and 604 production. Forged from 7075-T6 aluminum and machined to the original A1 blueprint — not a later A2 or flat-top reprofile — it carries the correct slab-side profile, A1 rear sight assembly with windage-only adjustment, and the integral triangular carry handle that defined the rifle that went to war.
The gray anodize is the critical detail collectors look for. Colt's early M16 and XM16E1 production used a gray-green hardcoat that aged distinctly from the black anodize adopted later, and this upper replicates that finish for builders who want their clone to photograph correctly alongside period reference material. It accepts any mil-spec A1-profile barrel assembly and pairs with Colt-marked or Colt-correct lowers for a complete 603/604/M16A1 build.
Charlie's Custom Clones stocks this correct-finish A1 upper for serious retro builders — the hard-to-find part that ties a Vietnam clone together. Order yours today.
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