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5.56x45 1:7 Receiver Parts

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Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with 9" ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M2

Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with 9" ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M2

$489 99 $569.99
In Stock
Only 1 Left!
Aero Precision M4E1 Threaded 14.5" 5.56 Carbine Length Complete Upper Receiver with 12" ATLAS R-ONE Handguard - Anodized Black - APAR700704M32

Aero Precision M4E1 Threaded 14.5" 5.56 Carbine Length Complete Upper Receiver with 12" ATLAS R-ONE Handguard - Anodized Black - APAR700704M32

$389 99 $564.99
In Stock
Only 4 Left!
Del-Ton Inc DT1040 Complete Upper Assembly 5.56x45mm NATO 16" Mid Length Chrome Moly Vanadium Barrel 15" M-LOK Handguard 7075-T6 Alum Upper Rec

Del-Ton Inc DT1040 Complete Upper Assembly 5.56x45mm NATO 16" Mid Length Chrome Moly Vanadium Barrel 15" M-LOK Handguard 7075-T6 Alum Upper Rec

$307 54
In Stock
Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard - Anodized Black - APAR700302M2

Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard - Anodized Black - APAR700302M2
$349 99 $534.99
In Stock
Only 6 Left!
Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver w/ 9.2" M-LOK ATLAS R-ONE Handguard - Cerakote FDE - APAR712712M2

Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver w/ 9.2" M-LOK ATLAS R-ONE Handguard - Cerakote FDE - APAR712712M2
$339 99 $479.99
In Stock
Only 1 Left!
Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7.3" ATLAS S-ONE Handguard - Anodized Black - APAR700101M102

Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7.3" ATLAS S-ONE Handguard - Anodized Black - APAR700101M102

$329 99 $509.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR712102M2

Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR712102M2

$369 99 $449.99
In Stock
Only 3 Left!
Aero Precision M4E1 Enhanced 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9" M-LOK Handguard - Anodized Black - APAR612275M2

Aero Precision M4E1 Enhanced 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9" M-LOK Handguard - Anodized Black - APAR612275M2

$379 99 $454.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

$349 99 $509.99
In Stock
Only 4 Left!
Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7

Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7
$429 99 $579.99
In Stock
Only 4 Left!
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS S-ONE Handguard - OD Green Anodized - APAR700179M7

Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS S-ONE Handguard - OD Green Anodized - APAR700179M7

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Pencil Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black - APAR700705M39

Aero Precision M4E1 Threaded 16" 5.56 Pencil Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black - APAR700705M39

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 M4 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Cerakote FDE - APAR700715M6

Aero Precision M4E1 Threaded 16" 5.56 M4 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Cerakote FDE - APAR700715M6

Out of Stock
Aero Precision AR15 Complete Upper with No Forward Assist 16" 5.56 Mid-Length Barrel, 15" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR610605M7

Aero Precision AR15 Complete Upper with No Forward Assist 16" 5.56 Mid-Length Barrel, 15" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR610605M7
Out of Stock
Aero Precision M4E1 Enhanced 20" 5.56 Rifle Length Complete Upper Receiver with 15" Quad Rail - Cerakote FDE - APAR640252Q48

Aero Precision M4E1 Enhanced 20" 5.56 Rifle Length Complete Upper Receiver with 15" Quad Rail - Cerakote FDE - APAR640252Q48
Out of Stock
Aero Precision AR15 Complete Upper with No Forward Assist, 11.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR610502M29

Aero Precision AR15 Complete Upper with No Forward Assist, 11.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR610502M29

Out of Stock
Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS S-ONE Handguard - APAR700304M30

Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS S-ONE Handguard - APAR700304M30
Out of Stock
Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - Cerakote FDE - APAR700714M30

Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - Cerakote FDE - APAR700714M30

Out of Stock
Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712112M2

Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712112M2

Out of Stock
Knights 31963 Upper Recver KIT SR15 CQB MOD2 11.5"

Knights 31963 Upper Recver KIT SR15 CQB MOD2 11.5"

Out of Stock
Aero Precision M4E1 Special Edition Thunder Ranch 14.5" 5.56 Mid-Length with 12" Atlas R-ONE Complete Upper Receiver - APAR700754M5

Aero Precision M4E1 Special Edition Thunder Ranch 14.5" 5.56 Mid-Length with 12" Atlas R-ONE Complete Upper Receiver - APAR700754M5
Out of Stock
Sons of Liberty M4-89-14.5 M4-89 14.5" Rifle 556NATO 30rd

Sons of Liberty M4-89-14.5 M4-89 14.5" Rifle 556NATO 30rd

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper w/ 15" ATLAS R-ONE, VG6 Gamma 556, BREACH Charging Handle, 5.56 BCG - FDE Cerakote - APSL100351

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper w/ 15" ATLAS R-ONE, VG6 Gamma 556, BREACH Charging Handle, 5.56 BCG - FDE Cerakote - APSL100351

Out of Stock
Aero Precision AR15 Complete Upper with 16" 5.56 Mid-Length Heavy QPQ Barrel & 15" ATLAS R-ONE M-LOK Handguard - OD Green Anodized - BLEM - APSL100479B

Aero Precision AR15 Complete Upper with 16" 5.56 Mid-Length Heavy QPQ Barrel & 15" ATLAS R-ONE M-LOK Handguard - OD Green Anodized - BLEM - APSL100479B

Out of Stock
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