AERO M4E1-T PRO UPPER RECEIVER GROUP 16 KB

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Anodized Black

Aero Precision M4E1-T Upper 5.56 14.5 Barrel No BCG/CH

Aero Precision M4E1 5.56 Rifle 18 Barrel Complete Upper Receiver

Aero Precision AR-15 M4E1-E Upper Assembly 5.56x45mm NATO 16" HBAR Barrel 15" ATLAS R-ONE Handguard Black

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized

Aero Precision M4E1-T Complete Upper, 18" .223 Wylde SS QPQ Rifle Length Barrel, RM16.6 - Ano

AERO PRECISION M4E1 PRO Complete Upper 5.56 NATO 16.3" / 15" ATLAS R-ONE Handguard - Black