M16A5 = Magpul MASADA ACR = Shoot Enemy Ammo, Don't Run Out = Win

The MAGPUL MASADA ACR uses some M16 parts so the legacy the “M16A5“ we need that fixes the dirty gas piston unreliability and weak telescoping stock problem with a sturdy folding stock and gas piston action. It also is MODULAR so it can be rapidly reconfigured to shoot enemy ammo in a pinch: Remington ACR (Adaptive Combat Rifle) Remington ACR (Adaptive Combat Rifle)