Aero Precision M5E1 Complete Upper Reciever, .308, 20in Rifle Barrel, 1-10 Twist, 5/8X24 Thread, Free-Float Handguard, Anodized, Black, APAR308554M27

Aero Precision M5 Complete Upper Receiver, 16in .308 SS Mid Barrel, W/ATLAS S-ONE 15in M-LOK Handguard, Anodized, Flat Dark Earth, APAR538115M23

Aero Precision M5 Complete Upper Receiver, 18in 6.5 Creedmoor SS Mid-Length Barrel, W/ATLAS R-ONE 15in M-LOK Handguard, Anodized, Flat Dark Earth, APAR538715M44

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 Receiver M5, .308 Winchester, 18in Fluted SS Barrel, Rifle Length W/ ATLAS S-ONE 15in M-LOK Handguard, Anodized, Black, APAR538105M69

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 AR-15 Complete Upper Receiver, 5.56, Carbine Length, 10.5 Inch Barrel W/Pinned FSB, Magpul MOE SL Handguard, A2 Flash Hider, FDE Cerakote, APAR502506M3

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, 5.56, 16In, M4 Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M6

Aero Precision AR-15 Complete Upper Receiver, 5.56, Carbine Length, 10.5 Inch Barrel W/Pinned FSB, Magpul MOE Handguard, A2 Flash Hider, Anodized Black, APAR502503M3

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

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 Threaded Complete Upper Receiver, 5.56 NATO, 14.5 in Barrel, M4 Profile, 1-7 Twist, 1/2X28 Thread, 12 in ATLAS R-ONE M-LOK Handguard, Black, APAR700704M67

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 Complete Upper Receiver, M4E1-T, .223, 18In, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M42

Aero Precision M4E1 Threaded Complete Upper Receiver, 5.56, 11.5In, Carbine Length, 1-7 Twist, 10.3in ATLAS S-ONE Handguard, A2 Flash Hider, Cerakote, OD Green, APAR700389M29

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, 10.5In, 5.56 Barrel, 9in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700302M2

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, .223 Wylde Mid Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16In, APAR600231M9

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

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 M4E1 Threaded Complete Upper, 7.5in 5.56 Barrel, ATLAS R-ONE 7in M-LOK HG, Anodized Black, APAR700701M0

Aero Precision M5E1 Complete Upper Reciever, .308, 18in Rifle Barrel, 1-10 Twist, 5/8X24 Thread, Free-Float Handguard, Cerakote, FDE, APAR308556M25

Aero Precision Complete Upper Receiver, M4E1-T, RM12.7, 5.56x45mm NATO, 13.9In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Anodized, Black, APAR700704M99

Aero Precision Complete Upper Receiver, M5E1, 20In, 6.5 cm SS Rifle Barrel, EM-15 HG Gen 2, FDE, APAR308556M45

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

Aero Precision M5E1 Complete Upper, 18in 6.5 cm SS Mid-Length Barrel, EM-15 HG Gen 2, FDE, APAR308556M44

Aero Precision AR-15 Complete Upper Receiver, 5.56, Rifle Length, 20 Inch Barrel W/Pinned FSB, Magpul MOE Handguard, A2 Flash Hider, Anodized Black, APAR502501M66

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 AR-15 Complete Upper Receiver, 5.56, Carbine Length, 10.5 Inch Barrel W/Pinned FSB, Magpul MOE SL Handguard, A2 Flash Hider, Anodized Black, APAR502505M3

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-T, 5.56x45mm NATO, 20In, Government, Rifle Length, 1 in 7, 1/2 X 28, 15In, A2 Flash Hider, Cerakote, FDE, APAR700715M48

Aero Precision AR-15 Complete Upper Receiver, 5.56, Carbine Length, 10.5 Inch Barrel W/Pinned FSB, Magpul MOE Handguard, A2 Flash Hider, FDE Cerakote, APAR502504M3