Newly arrived G&P M4A1 at Nashville Airsoft... "We just received the new G&P M4A1 with reinforced 8mm bearing mechbox. G&P never ceases to deliver top quality in externals as well as internals, and this model is no different. The mechbox­ is built like a tank, the internal parts are excellent, and the externals are unrivaled. G&P manages to do all of this, while keeping the price tag under $400."

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