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Which Aero Precision Lowers will this Upper fit on to? Gen.1, Gen.2, M4E1? Or All 3's? — 1 Answer

by Bacon Buster, from FL, United States Asked on January 22, 2020

Name Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver (4.9)
As Low As $179.99 Save Up to 19%
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Answered by Armando R., Gear Expert, from IL, United States, on February 11, 2020

It will work with any mil-spec AR-15 lower receiver and should function with ALL of the Aero Precision small frame lower receivers.

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