Aero Precision M4E1 Threaded Assembled Upper Receiver, M16/AR-15, Magpul Cerakote, Flat Dark Earth, APAR700202AC

Aero Precision Complete Upper Receiver, M4E1-T, SM-15, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Anodized, OD Green, APAR700179M7

Aero Precision M4E1 Complete Upper Receiver, AR-15, 18 in Rifle Length Barrel, 15 in M-LOK Handguard, No BCH/CH, Magpul Cerakote, Flat Dark Earth, APAR640252M8

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 Complete Upper Receiver, M4E1-T, SM-15, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Anodized, Kodiak Brown, APAR700392M7

Aero Precision Complete Upper Receiver, M4E1, 16In, 5.56 Mid Pencil Barrel, EM-15 HG Gen 2, Anodized Black, APAR640251M39

Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO

Aero Precision M4E1 Complete Upper Receiver, AR-15, 5.56x45mm NATO, 16 in Mid Length Barrel, 12 in Quad Rail Handguard, No BCG/CH, Anodized, Black, APAR640231Q7

Aero Precision M4E1-E EM15 Complete Upper, 5.56 X 45, 16Inch, HBAR, Mid Length, 1-7 Twist, 1/2 X 28 Thread, Cerakote, FDE, APAR600294M97

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 Threaded Assembled Upper Receiver, M16/AR-15, Anodized, Black, APAR700201AC

Aero Precision Complete Upper Receiver, M4E1-T, RM-15, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Anodized, OD Green, APAR700178M7

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 Complete Upper Receiver, M4E1-T, .300, 16In, Blackout Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M14

Aero Precision M4E1 Threaded Assembled Upper Receiver, M16/AR-15, Magpul Cerakote, Sniper Grey, APAR700272AC

Aero Precision M4E1 Complete Upper Receiver, AR-15, 10.5 in Rifle Length Barrel, 9 in M-LOK Handguard, No BCH/CH, Magpul Cerakote, Flat Dark Earth, APAR640222M2

Aero Precision M4E1 Complete Upper Receiver, AR-15, 5.56x45mm NATO, 14.5 in Mid Length Barrel, 12 in M-LOK Handguard, No BCG/CH, Magpul Cerakote, Flat Dark Earth, APAR640232M5

Aero Precision Complete Upper Receiver, M4E1-T, RM-15, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Anodized, Kodiak Brown, APAR700401M7

Aero Precision M4E1 Threaded Assembled Upper Receiver, M16/AR-15, Magpul Cerakote, OD Green, APAR700417AC

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 Complete Upper Receiver, M4E1-T, 5.56, 16In, Mid-Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M7

Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 16In, Pencil, Mid Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Cerakote, FDE, APAR700715M39

Aero Precision Complete Upper Receiver, M4E1-T, .300 AAC Blackout, 16In, DRP, Pistol Length, 1 in 7, 5/8 X 24, 15In, A2 Flash Hider, Cerakote, FDE, APAR700715M14

Aero Precision M4E1-E EQ15 Complete Upper, 5.56 X 45, 16Inch, HBAR, Mid Length, 1-7 Twist, 1/2 X 28 Thread, Cerakote, FDE, APAR600224Q97

Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 16In, SPR - Fluted, Mid Length, 1 in 8, 1/2 X 28, 15In, A2 Flash Hider, Cerakote, FDE, APAR700715M50

Aero Precision Complete Upper Receiver, M4E1-T, 10in .300 Blackout Barrel, 9in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700312M4

Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 18In, Government, Rifle Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Cerakote, FDE, APAR700715M8

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

Aero Precision Complete Upper Receiver, M4E1-T, 5.56, 16In, M4 Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M6

Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Anodized, Black, APAR700704M7

Aero Precision Complete Upper Receiver, M4E1-T, 18In, 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M8

Aero Precision Complete Upper Receiver, M4E1-T, 20in 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M48

Aero Precision M4E1-T RM15 Complete Upper, 5.56 X 45, 16Inch, HBAR, Mid Length, 1-7 Twist, 1/2 X 28 Thread, Cerakote,, FDE, APAR700715M97

Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16In, APAR600252Q14

Aero Precision Complete Upper Receiver, M4E1-T, 5.56, 16In, M4 Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M6

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