M4E1 Upper Receivers - Threaded vs Enhanced
Posted: May 14, 2020
M4E1 Threaded Upper Receiver vs M4E1 Enhanced Upper Receiver
Aero Precision M4E1 Upper Receivers are offered in two configurations - the M4E1 Threaded Upper Receiver and the M4E1 Enhanced Upper Receiver. Our M4E1 Upper Receivers are manufactured from custom forgings, providing billet like aesthetics at a great price. These 2 receivers are nearly identical in every way except for how the handguard attaches to the upper receiver.