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5.56x45 AR-15 Rifle Parts

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

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

$459 99 $589.99
In Stock
Only 3 Left!
Ballistic Advantage Modern Series 11.5" Government Profile 5.56x45mm Carbine Length Barrel - BABL556023M

Ballistic Advantage Modern Series 11.5" Government Profile 5.56x45mm Carbine Length Barrel - BABL556023M
$147 25
In Stock
Only 2 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
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

$267 18
In Stock
Only 4 Left!
Aero Precision AR15 16" 5.56 Carbine-Length M4 QPQ Barrel Complete Upper 13.5" Slimline Handguard - Left Handed - Anodized Black - APSL100707

Aero Precision AR15 16" 5.56 Carbine-Length M4 QPQ Barrel Complete Upper 13.5" Slimline Handguard - Left Handed - Anodized Black - APSL100707

$349 99 $499.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length QPQ No Forward Assist Complete Upper with 13.5" Slimline Handguard - Kodiak Brown Anodized - APSL100753

Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length QPQ No Forward Assist Complete Upper with 13.5" Slimline Handguard - Kodiak Brown Anodized - APSL100753

$419 99 $534.99
In Stock
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Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - Anodized Black - APAR700704M5

Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - Anodized Black - APAR700704M5
$399 99 $574.99
In Stock
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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
$274 98
In Stock
Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 16" 5.56 M4 Carbine Length Barrel & 15" Enhanced M-LOK Handguard - Anodized Black - APAR100218M73

Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 16" 5.56 M4 Carbine Length Barrel & 15" Enhanced M-LOK Handguard - Anodized Black - APAR100218M73

$739 99 $799.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded 10.5" 5.56 Carbine No Forward Assist Complete Upper with 9.3" M-LOK ATLAS R-ONE Handguard - OD Green Anodized - APSL100624

Aero Precision M4E1 Threaded 10.5" 5.56 Carbine No Forward Assist Complete Upper with 9.3" M-LOK ATLAS R-ONE Handguard - OD Green Anodized - APSL100624

$359 99 $484.99
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

$512 05
In Stock
Only 5 Left!
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS S-ONE Handguard - Kodiak Brown Anodized - APAR700392M7

Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS S-ONE Handguard - Kodiak Brown Anodized - APAR700392M7

$499 99 $589.99
In Stock
Only 4 Left!
Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1

Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1
$649 99 $1,029.99
In Stock
Aero Precision M4E1 Threaded PRO Complete Upper with 13.7" 5.56 CHF Mid-Length Barrel and 12.7" ATLAS R-ONE Handguard - Anodized Black - APUG700704M104-1

Aero Precision M4E1 Threaded PRO Complete Upper with 13.7" 5.56 CHF Mid-Length Barrel and 12.7" ATLAS R-ONE Handguard - Anodized Black - APUG700704M104-1

$649 99 $1,004.99
In Stock
Only 3 Left!
Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - Anodized Black - APAR502503M64

Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - Anodized Black - APAR502503M64
$269 99 $409.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - ODG Anodized - APAR700396M29

Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - ODG Anodized - APAR700396M29

$369 99 $549.99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - Kodiak Brown Anodized - APAR700397M29

Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - Kodiak Brown Anodized - APAR700397M29

$479 99 $549.99
In Stock
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Gemtech 13833 Gvac Upper Receiver 5.56x45mm NATO 16.10", Black, 15" M-LOK Handguard, ETM Flash Hider, BCG Included

Gemtech 13833 Gvac Upper Receiver 5.56x45mm NATO 16.10", Black, 15" M-LOK Handguard, ETM Flash Hider, BCG Included

$741 16
In Stock
Only 4 Left!
Spikes Tactical Midlength Complete 5.56x45mm NATO 16", Black, 12" Picatinny Handguard, A2 Flash Hider

Spikes Tactical Midlength Complete 5.56x45mm NATO 16", Black, 12" Picatinny Handguard, A2 Flash Hider

$790 22
In Stock
Only 1 Left!
Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

$179 99 $249.99
In Stock
LBE ARUPPER AR Upper Recv w/ASST

LBE ARUPPER AR Upper Recv w/ASST

$106 58
In Stock
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 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 14.5" 5.56 CMV Barrel, Mid-Length with Pinned Epsilon 556SL - APRH101597C

Aero Precision 14.5" 5.56 CMV Barrel, Mid-Length with Pinned Epsilon 556SL - APRH101597C

$179 99 $249.99
In Stock
Only 4 Left!
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