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

Aero Precision M4E1 Enhanced No Forward Assist Complete Upper Receiver, 10.5in 5.56 Carbine, EM-9.3, Anodized Black, APAR612275M2

Aero Precision M4E1 Enhanced Complete Upper Receiver, 5.56 NATO, 14.5 in Barrel, Government Profile, 1-7 Twist, 12 in M-LOK Handguard, Pinned VG6 Epsilon 556SL Brake, Anodized, Black, APAR640232M68

Aero Precision M4E1 Enhanced No Forward Assist Complete Upper Receiver, 10.5in 5.56 Carbine, EM-9.3, FDE, APAR612276M2

Aero Precision M4E1 Enhanced Assembled Upper Receiver, FDE, APAR600202AC

Aero Precision M4E1 15in Enhanced M-LOK Complete Upper, 16in 5.56 HBAR CMV Mid-Length Barrel, Anodized Black, APAR600218M97

Aero Precision M4E1 Enhanced Upper Receiver 5.56 NATO

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

Aero Precision Complete Upper M4E1-E .223 Wylde 18in Mid-Length EQ15 Anodized Black APAR600251Q73

Aero Precision M4E1 Enhanced Stripped Upper Receiver, OD Green, APAR600215AC

Aero Precision M4E1 Enhanced Stripped Upper Receiver, Kodiak Brown, APAR600216AC

Aero Precision M4E1 Complete Upper, 20in 6.5 Grendel Stainless Steel Barrel, EM15 Gen 2 HG, FDE Cerakote, APAR640252M53

Aero Precision M4E1 Mid Barrel Complete Upper Receiver W/Flash Hider, AR-15, 5.56x45mm NATO, 16in Mid Length Barrel, 15in M-LOK Handguard, No BCG/CH, Magpul Cerakote, Flat Dark Earth, APAR640252M7

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

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 M4E1 Threaded No Forward Assist Complete Upper Receiver, 10.5in 5.56 Carbine, RM9.2, FDE, APAR712712M2

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, 5.56x45mm NATO, 16In, Government, Mid Length, 1 in 7, 1/2 X 28, 12.7In, A2 Flash Hider, Cerakote, FDE, APAR700714M7

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 M4E1 Threaded 5.56mm Complete Upper Receiver, 16In, Mid-Length Barrel, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, FDE Cerakote, APAR700715M7

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

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 5.56mm Complete Upper Receiver, 16In, Mid-Length Barrel, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, Black Anodized, APAR700705M7

Aero Precision M4E1 Threaded Complete Upper Receiver, 5.56, 16In, Mid-Length Barrel, 1-7 Twist, 15in ATLAS S-ONE Handguard, A2 Flash Hider, Cerakote, OD Green, APAR700064M7

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 10,5In, M4 Barrel, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, FDE Cerakote, APAR700712M2

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 20In, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, Black Anodized, APAR700705M48

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

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

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 M4E1 Threaded .223 Wylde Complete Upper Receiver, 18In, Wylde SS QPQ Rifle Length, 1-8 Twist, A2 Flash Hider, 15 in M-LOK ATLAS R-ONE Handguard, Black Anodized, APAR700705M73

Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver, 16In, 1-7 Twist, A2 Flash Hider, 5/8X24 Thread, ATLAS R-ONE Handguard, Black Anodized, APAR700705M14

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver, 18In, 1-7 Twist, A2 Flash Hider, ATLAS R-ONE Handguard, Black Anodized, APAR700705M8

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

Aero Precision Complete Upper, M4E1-E, .223 Wylde, 16In, Mid-Length, EQ15 Anodized, Black, APAR600251Q72

Aero Precision Complete Upper, M4E1-E, .223 Wylde, 18In, Mid-Length, EQ15 Anodized, Black, APAR600251Q73