Aero Precision AR-15 Complete Upper Receiver, 5.56, Carbine Length, 16 Inch Barrel W/Pinned FSB, Magpul MOE Handguard, A2 Flash Hider, Anodized Black, APAR502503M64

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 M4E1 Complete Upper Receiver, 16In, 5.56, M4, Carbine Barrel, EQ-12 HG Gen 2, FDE Cerakote, APAR640232Q6

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 Mid Barrel Complete Upper Receiver W/Flash Hider, AR-15, 5.56x45mm NATO, 16in Mid Length Barrel, 12in M-LOK Handguard, No BCG/CH, Anodized, Black, APAR640231M7

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, M5E1, 20In, 6.5 cm SS Rifle Barrel, EM-15 HG Gen 2, FDE, APAR308556M45

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 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, 18In, 5.56 Rifle Length Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M8

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

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

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 Complete Upper Receiver, AR-15, 5.56x45mm NATO, 14.5 in Mid Length Barrel, 12 in Quad Rail Handguard, No BCG/CH, Anodized, Black, APAR640231Q5

Aero Precision AR15 Complete Upper, 16in 5.56 M4 Carbine Barrel W/ Pinned FSB, M4 Handguard ,Includes BCG & CH, Anodized Black, APAR505721

Aero Precision M5 Complete Upper Receiver, 18in 6.5 Creedmoor SS Mid-Length Barrel, W/ATLAS R-ONE 15in M-LOK Handguard, Anodized, Black, APAR538705M44

Aero Precision Complete Upper Receiver, M4E1-T, 10in .300 Blackout Barrel, 9in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700302M4

Aero Precision M5 Complete Upper Receiver, 24in 6.5 Creedmoor SS Rifle Barrel, W/ATLAS S-ONE 15in M-LOK Handguard, Anodized, Black, APAR538105M47

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

Aero Precision M4E1 Complete Upper Receiver 5.56 Barrel W/ FSB EQ-7 HG, No BCG/Charging Handle, Anodized Black, 10.5In, APAR600211Q3

Aero Precision M5 Complete Upper Receiver, 16in .308 Mid Barrel, W/ATLAS R-ONE 12in M-LOK Handguard, Anodized, Flat Dark Earth, APAR538714M22

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 .300 Blackout Complete Upper Receiver, 8In, 1-7 Twist, 5/8X24 Thread, ATLAS R-ONE Handguard, FDE Cerakote, APAR700711M1

Aero Precision Complete Upper Receiver, M4E1-T, .223, 16In, Wylde Fluted Barrel, 15in M-LOK ATLAS S-ONE Handguard, Cerakote, Flat Dark Earth, APAR700315M50

Aero Precision M4E1-T Complete Upper Receiver, .300 AAC Blackout, 8In, Pistol Length, S-One M-LOK Handguard, Black, APAR712101M1

Aero Precision Complete Upper, M4E1-T, 5.56, 8In, Pistol Barrel, RM7.3 Anodized, Black, APAR700701M102

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 M5 Complete Upper Receiver, 16in .308 Mid Barrel, W/ATLAS R-ONE 12in M-LOK Handguard, Anodized, Black, APAR538704M22

Aero Precision AR-15 Complete Upper Receiver, 5.56, Rifle Length, 20 Inch Barrel W/Pinned FSB, Magpul MOE Handguard, A2 Flash Hider, FDE Cerakote, APAR502502M66

Aero Precision M5 Complete Upper Receiver, 16in .308 CMV Mid Barrel, W/ATLAS S-ONE 12in M-LOK Handguard, Anodized, Flat Dark Earth, APAR538114M22

Aero Precision M4E1-T Complete Upper, .223 Wylde, 18In, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, Anodize Black, APAR700305M73

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

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 EPC-9 Threaded Complete Upper Receiver, 8.3in 9Mm, W/ ATLAS S-ONE 7.3in Handguard, FDE, APAR620111M85

Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16In, APAR600251Q14