Aero Precision Complete Upper Receiver, M4E1-E, 5.56x45mm NATO, 13.9In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7in Enhanced M-LOK HG, A2 Flash Hider, Cerakote, FDE, APAR600284M99

Aero Precision Complete Upper, M4E1-E, .223 Wylde, 18In, Mid-Length, EQ15 Cerakote, FDE Cerakote, APAR600252Q73

Aero Precision M4E1 Complete Upper Receiver, 16In, 5.56, M4, Carbine Barrel, EQ-12 HG Gen 2, FDE Cerakote, APAR640232Q6

Aero Precision M4E1-T Complete Upper, 20in 6.5 Grendel Stainless Steel Barrel, SM15, FDE Cerakote, APAR700335M53

Aero Precision Complete Upper Receiver, M4E1-E, 18In, .223 Wylde Fluted Barrel, EM-15 Handguard Gen 2, Anodized Black, APAR640232M51

Aero Precision M4E1 Enhanced No Forward Assist Complete Upper Receiver, 16in 5.56 Mid, EM15, Anodized Black, APAR612218M7

Aero Precision Complete Upper Receiver, M4E1-T, 20in 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M48

Aero Precision Complete Upper, M4E1-E, 5.56, 8In, Pistol Barrel, EM7.3 Anodized, Black, APAR640269M102

Aero Precision M4E1-E Complete Upper, 14.5in 5.56 M4 Carbine Barrel, EQ-12 Handguard Gen 2, Anodized Black, APAR640231Q32

Aero Precision Complete Upper W/ No Forward Assist, M4E1-T, 5.56, 8in 5.56, Pistol Barrel, RM7.3 Anodized, Black, APAR712701M102

Aero Precision M4E1 Complete Upper Receiver, 18In, .223 Wylde Rifle Barrel, EM-15 HG Gen 2, Cerakote, FDE, APAR640252M42

Aero Precision Complete Upper Receiver, M4E1-E, 16In, .223 Wylde Fluted Barrel, EM-15 Handguard Gen 2 Cerakote, Flat Dark Earth, APAR640252M50

Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 11.5In, Government, Carbine Length, 1 in 7, 1/2 X 28, 10.3In, A2 Flash Hider, Anodized, Kodiak Brown, APAR700397M29

Aero Precision Complete Upper, M4E1-E, 5.56, 20In, Rifle Barrel, 1/7 Twist, EQ15 Cerakote, Black, APAR640251Q48

Aero Precision M4E1 Complete Upper Receiver 5.56 Barrel W/ FSB EQ-7 HG, No BCG/Charging Handle, Anodized Black, 10.5In, APAR600211Q3

Aero Precision M4E1-E EQ15 Complete Upper, 5.56 X 45, 16Inch, HBAR, Mid Length, 1-7 Twist, 1/2 X 28 Thread, Anodized, Black, APAR600206Q97

Aero Precision M4E1 Complete Upper Receiver .223 Wylde Mid Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16In, APAR600251M9

Aero Precision M4E1 Complete Upper Receiver, AR-15, 18 in Rifle Length Barrel, 15 in M-LOK Handguard, No BCH/CH, Anodized, Black, APAR640251M8

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver, 10.5in 5.56 Carbine, SM9.2, FDE, APAR712112M2

Aero Precision Complete Upper Receiver, M4E1-E, 5.56x45mm NATO, 20In, Government, Rifle Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Cerakote, FDE, APAR640252M48

Aero Precision M4E1 Complete Upper, 20in 6.5 Grendel Stainless Steel Barrel, EM15 Gen 2 HG, Anodized Black, APAR640232M53

Aero Precision Complete Upper Receiver, M4E1-T, 14.5In, 5.56 Carbine Length Barrel, 12in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700304M32

Aero Precision M4E1 Complete Upper Receiver .223 Wylde Mid Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16In, APAR600232M9

Aero Precision Complete Upper Receiver, M4E1-T, 18In, 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M8

Aero Precision M4E1 Complete Upper Receiver, AR-15, 5.56x45mm NATO, 14.5 in Mid Length Barrel, 12 in Quad Rail Handguard, No BCG/CH, Magpul Cerakote, Flat Dark Earth, APAR640232Q5

Aero Precision M4E1-T RM10.3 Complete Upper, 5.56 X 45, 12.5Inch, Government, Carbine, 1-7 Twist, 1/2 X 28 Thread, Cerakote, FDE, APAR700713M30

Aero Precision Complete Upper Receiver, M4E1-T, 7.5In, 5.56 Barrel, 7in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700311M0

Aero Precision M4E1 Threaded Complete Upper, 7.5in 5.56 Barrel, ATLAS R-ONE 7in M-LOK HG, FDE Cerakote, APAR700711M0

Aero Precision M4E1-T Complete Upper Receiver, 5.56Mm, 11.5In, Carbine Length, S-One M-LOK Handguard, Black, APAR712102M29

Aero Precision M4E1-T RM10.3 Complete Upper, 5.56 X 45, 12.5Inch, Government, Carbine, 1-7 Twist, 1/2 X 28 Thread, Anodized, Black, APAR700703M30

Aero Precision Complete Upper Receiver, M4E1, 14.7In, 5.56 Mid Pencil Barrel, EQ-12 HG Gen 2, Anodized Black, APAR640231Q38

Aero Precision Complete Upper Receiver, M4E1-T, 10.5In, 5.56 Barrel, 9in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700312M2

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 16In, M4 Barrel, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, Black Anodized, APAR700705M6

Aero Precision M4E1 Threaded Complete Upper Receiver, 5.56 NATO, 14.5 in Barrel, Government Profile, 1-7 Twist, 1/2X28 Thread, 12 in ATLAS S-ONE M-LOK Handguard, Black, APAR700304M68

Aero Precision M4E1 Upper Receiver, AR-15, 5.56x45mm NATO, 7 in M-LOK Handguard, No BCG/Charging Handle, Magpul Cerakote, Flat Dark Earth, APAR640212M0

Aero Precision M4E1-T Complete Upper Receiver, 16in .223 Wylde Fluted Barrel, ATLAS R-ONE 15in M-Lok Handguard, Anodized, Black, APAR700705M50