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-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, 16In, 5.56 Mid Pencil Barrel, EQ-15 HG Gen 2, FDE Cerakote, APAR640252Q39

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, 14.5In, 5.56 Carbine Length Barrel, 12in M-LOK ATLAS S-ONE Handguard, Flat Dark Earth, APAR700314M32

Aero Precision Complete Upper Receiver, M4E1-T, SM12.7, 5.56x45mm NATO, 13.9In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Cerakote, FDE, APAR700114M99

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, 5.56, 16In, M4 Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M6

Aero Precision Complete Upper Receiver, M4E1-T, 5.56x45mm NATO, 13.9In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7in S-ONE M-LOK HG, A2 Flash Hider, Anodized, Black, APAR700104M99

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 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver, Kodiak Brown, APAR712204AC

Aero Precision M4E1 Threaded Stripped Upper Receiver, No Forward Assist, Anodized Black, APAR712201C

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 Complete Upper Receiver, M4E1-T, 5.56, 16In, M4 Barrel, 12in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700314M6

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

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver, Anodized Black, APAR712201AC

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver, OD Green, APAR712205AC

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 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, 5.56x45mm NATO, 16In, Government, Carbine Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Anodized, Black, APAR700704M6

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, Cerakote, FDE, APAR700714M7

Aero Precision Complete Upper Receiver, M4E1-T, .223, 16In, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M9

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 5.56 Enhanced Upper Receiver, No Forward Assist, Anodized Black, APAR612201AC

Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO

Aero Precision Complete Upper Receiver, M4E1-T, .223, 18In, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Flat Dark Earth, APAR700315M42

Aero Precision Complete Upper Receiver, M4E1-T, 5.56, 16In, Mid-Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M7

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, 20in 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M48

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 10,5In, M4 Barrel, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, Black Anodized, APAR700702M2

Aero Precision Complete Upper Receiver, M4E1-E, 5.56x45mm NATO, 13.9In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Anodized, Black, APAR600217M99

Aero Precision M4E1 Complete Upper Receiver, AR-15, 10.5 in Rifle Length Barrel, 9 in Quad Rail Handguard, No BCH/CH, Magpul Cerakote, Flat Dark Earth, APAR640222Q2

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, .223 Wylde Mid Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16In, APAR600232Q9

Aero Precision M4E1 Mid Barrel Complete Upper Receiver W/Flash Hider, AR-15, 5.56x45mm NATO, 16in Mid Length Barrel, 12in M-LOK Handguard, No BCG/CH, Magpul Cerakote, Flat Dark Earth, APAR640232M7

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