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 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC

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

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

Aero Precision M4E1 Assembled Upper Receiver, Thread, M-LOK Handguard, Anodized, Brown, APAR700222AC

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 14,5In, Mid-Length Barrel, 1-7 Twist, 1/2X28 Thread, ATLAS R-ONE Handguard, W/VG6 Precision Gamma 556 SL, Black Anodized, APAR700704M5V38

Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO

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 Quad Rail Handguard, No BCH/CH, Magpul Cerakote, Flat Dark Earth, APAR640222Q2

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

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 Threaded No Forward Assist Complete Upper Receiver, 16in 5.56 Mid, SM15, FDE, APAR712115M7

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

Aero Precision M4E1 Threaded Assembled Upper Receiver, M16/AR-15, Anodized, Black, APAR700201AC

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 Threaded Complete Upper Receiver, 5.56, 11.5In, Carbine Length, 1-7 Twist, 10.3in ATLAS R-ONE Handguard, A2 Flash Hider, Cerakote, OD Green, APAR700398M29

Aero Precision M4E1 Complete Upper Receiver, 18In, .223 Wylde Rifle Barrel, EQ-15 HG Gen 2, Cerakote, FDE, APAR640252Q42

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver, 10.5in 5.56 Carbine, SM9.2, Anodized Black, APAR712102M2

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

Aero Precision M4E1 Threaded .223 Wylde Complete Upper Receiver, 16In, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M72

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver, Kodiak Brown, APAR712204AC

Aero Precision M4E1 Gen 2 Complete Upper Receiver, 18In, .223 Wylde Fluted Barrel, Atlas S-ONE 15in M-LOK HG, Anodized W/BCG/CH, Black, APAR900003

Aero Precision Complete Upper Receiver, M4E1, .300 Barrel EM-7 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 8In, APAR600212M1

Aero Precision M4E1 5.56 Enhanced Upper Receiver, No Forward Assist, Anodized Black, APAR612201AC

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, .223, 16In, Wylde Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M9

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 M4E1-T Complete Upper Receiver, 5.56Mm, 12.5In, Carbine Length, S-One M-LOK Handguard, Black, APAR712102M30

Aero Precision M4E1-T PRO CHF, M4, 5.56Mm, 11.5 Inch Complete Upper Receiver, Hanson, Carbine Length, 1-7 Twist, A2 Birdcage, Anodized, Black, APAR700005D113

Aero Precision M4E1 Threaded .223 Wylde Complete Upper Receiver, 16In, SS QPQ Mid-Length Barrel, 1-8 Twist, A2 Flash Hider, 15in M-LOK ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M72

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

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 Receiver, M4E1, 10.5In, 5.56 Barrel W/ FSB, EM-7 HG Gen 2, FDE Cerakote, APAR640212M3

Aero Precision M4E1 5.56 NATO No Forward Assist Threaded Assembled Upper Receiver, FDE Cerakote, APAR712202AC