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5.56x45 Receiver Parts

  1. Stock Filter: In Stock
  2. Caliber/Gauge: 5.56x45
  3. Category: 5.56x45 Receiver Parts
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Tacfire 5.56x45mm 7" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-7

Tacfire 5.56x45mm 7" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-7

1 Review
$303 75
In Stock
Tacfire 5.56x45mm 16" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-16

Tacfire 5.56x45mm 16" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-16

1 Review
$332 81
In Stock
Aero Precision AR15 14.5" 5.56 Mid-Length Gov QPQ Barrel Complete Upper 13.5" Slimline Left Handed - Anodized Black - APSL100710

Aero Precision AR15 14.5" 5.56 Mid-Length Gov QPQ Barrel Complete Upper 13.5" Slimline Left Handed - Anodized Black - APSL100710

$359 99 $499.99
In Stock
Only 1 Left!
Ballistic Advantage 16" 5.56 Hanson Mid-Length with 15" Ballistic Advantage LOGIC Handguard AR-15 Complete Upper Receiver - BAUR10006

Ballistic Advantage 16" 5.56 Hanson Mid-Length with 15" Ballistic Advantage LOGIC Handguard AR-15 Complete Upper Receiver - BAUR10006

$379 99 $512.05
In Stock
Only 3 Left!
Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 14.5" 5.56 Mid-Length Barrel & 12.7" Enhanced M-LOK Handguard - Anodized Black - APAR100217M72

Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 14.5" 5.56 Mid-Length Barrel & 12.7" Enhanced M-LOK Handguard - Anodized Black - APAR100217M72

$729 99 $899.99
In Stock
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Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97

Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97

1 Review
$619 99
In Stock
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Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel, EQ-15 Gen 2 Handguard - FDE Cerakote - APAR640252Q7

Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel, EQ-15 Gen 2 Handguard - FDE Cerakote - APAR640252Q7

$619 99
In Stock
Only 1 Left!
Tacfire 5.56x45mm 5" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard, and Adjustable Gas Block - BU-556-5

Tacfire 5.56x45mm 5" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard, and Adjustable Gas Block - BU-556-5

$309 19
In Stock
Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - FDE - APAR502504M64

Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - FDE - APAR502504M64

$409 99
In Stock
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Aero Precision M4E1 Enhanced 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" Enhanced M-LOK Handguard - Cerakote FDE - APAR640232M5

Aero Precision M4E1 Enhanced 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" Enhanced M-LOK Handguard - Cerakote FDE - APAR640232M5

$609 99
In Stock
Only 2 Left!
Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Anodized Black - APAR600206Q97

Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Anodized Black - APAR600206Q97

$589 99
In Stock
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Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver - Anodized Black - APAR640231M32

Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver - Anodized Black - APAR640231M32

$564 99
In Stock
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CMMG 55B8D86AB Dissent MK4 5.56x45mm NATO 10.50", Left Side Charging Handle, Armor Black, OEM Zeroed Blast Comp, 9.60" M-LOK Handguard for AR-Platform, Picatinny End Plate

CMMG 55B8D86AB Dissent MK4 5.56x45mm NATO 10.50", Left Side Charging Handle, Armor Black, OEM Zeroed Blast Comp, 9.60" M-LOK Handguard for AR-Platform, Picatinny End Plate

$1297 89
In Stock
Only 1 Left!
Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700304M32

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700304M32

$564 99
In Stock
Only 3 Left!
Aero Precision M4E1 Complete Upper, 14.5" 5.56 M4 Carbine Barrel, EM-12 Gen 2 Handguard - FDE Cerakote - APAR640232M32

Aero Precision M4E1 Complete Upper, 14.5" 5.56 M4 Carbine Barrel, EM-12 Gen 2 Handguard - FDE Cerakote - APAR640232M32

$604 99
In Stock
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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

$454 99
In Stock
Only 2 Left!
Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Quad Rail Handguard - Anodized Black - APAR640251Q7

Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Quad Rail Handguard - Anodized Black - APAR640251Q7

$589 99
In Stock
Only 1 Left!
Patriot Ordnance Factory 01988 P415 Complete Upper (Piston Driven Adj. Gas Block) 5.56x45mm NATO 16.50", OD Green Anodized, 3-Port Muzzle Brake, 14.50" MMR M-LOK Handguard

Patriot Ordnance Factory 01988 P415 Complete Upper (Piston Driven Adj. Gas Block) 5.56x45mm NATO 16.50", OD Green Anodized, 3-Port Muzzle Brake, 14.50" MMR M-LOK Handguard

$1281 18
In Stock
Only 2 Left!
Ballistic Advantage 13.9" 5.56 Hanson Mid-Length with 12" Ballistic Advantage LOGIC M-LOK Handguard AR-15 Complete Upper Receiver - BAUR10005

Ballistic Advantage 13.9" 5.56 Hanson Mid-Length with 12" Ballistic Advantage LOGIC M-LOK Handguard AR-15 Complete Upper Receiver - BAUR10005

$497 80
In Stock
Only 1 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

$509 99
In Stock
Only 4 Left!
SilencerCo AC5065 SCO15 Stripped Upper Receiver Black Anodized Aluminum for Mil-Spec AR-15 Lower

SilencerCo AC5065 SCO15 Stripped Upper Receiver Black Anodized Aluminum for Mil-Spec AR-15 Lower

$219 00
In Stock
Ballistic Advantage 10.3" 5.56 Hanson Carbine Length with 9" Ballistic Advantage LOGIC M-LOK Handguard AR15 Complete Upper Receiver - BAUR10002

Ballistic Advantage 10.3" 5.56 Hanson Carbine Length with 9" Ballistic Advantage LOGIC M-LOK Handguard AR15 Complete Upper Receiver - BAUR10002

$459 80
In Stock
Only 2 Left!
Ballistic Advantage 11.3" 5.56 Hanson Carbine Length with 10" Ballistic Advantage LOGIC M-LOK Handguard AR-15 Complete Upper Receiver .625 Gas Block Journal - BAUR10003

Ballistic Advantage 11.3" 5.56 Hanson Carbine Length with 10" Ballistic Advantage LOGIC M-LOK Handguard AR-15 Complete Upper Receiver .625 Gas Block Journal - BAUR10003

$464 55
In Stock
Only 1 Left!
Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel with 10.3" ATLAS R-ONE M-LOK Handguard - Anodized Black - APAR700703M30

Aero Precision M4E1 Threaded Complete Upper, 12.5" 5.56 Carbine Length Barrel with 10.3" ATLAS R-ONE M-LOK Handguard - Anodized Black - APAR700703M30

$554 99
In Stock
Only 2 Left!
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