Aero Precision M4e1 Assembled Upper Receiver 5.56 Mid-Length


Enhanced Carbine Upper With Extended Accessory-Ready Handguard

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SKU: 2175201825560968 Categories: ,


Aero Precision’s M4E1 5.56mm Mid-Length Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle – the two components most often replaced by customizers. “Mid-Length” refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5″ or civilian 16″ barrel (see Gun Tech Note below). The core of the M4E1 5.56mm Mid-Length Upper Receiver is Aero’s forged M4E1 receiver that combines the looks of a machined receiver with “mil-spec” parts compatibility (including BCG Mfg: Aero Precision

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