levels.svg levels icon sort-down.svg sort down icon sort-up.svg sort up icon search.svg search icon user-circle.svg user circle icon cart-alt.svg cart icon plus.svg plus icon chevron-left.svg chevron left icon chevron-right.svg chevron right icon phone.svg phone icon zoom-in.svg zoom in icon

ENTER TO WIN OUR CURRENT CONTEST

5.56x45 Upper Receivers

1-24 of 222 Products
Sort By:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. ...
  7. 10
Aero Precision AR15 20" 5.56 Complete Upper with Pinned FSB & A2 Handguard - Anodized Black - APAR505611

Aero Precision AR15 20" 5.56 Complete Upper with Pinned FSB & A2 Handguard - Anodized Black - APAR505611
$509 99
In Stock
M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

$534 99
In Stock
Only 3 Left!
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M7

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M7

$624 99
In Stock
Only 2 Left!
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
$534 99
In Stock
Only 1 Left!
Stag Arms STAG 15 Tactical Complete Right Handed AR-15 Upper Receiver, 10.5" Black Nitride Barrel with Aero Precision BREACH Charging Handle & BCG - STAG15100312L

Stag Arms STAG 15 Tactical Complete Right Handed AR-15 Upper Receiver, 10.5" Black Nitride Barrel with Aero Precision BREACH Charging Handle & BCG - STAG15100312L
$449 99 $499.99
In Stock
Only 5 Left!
Aero Precision AR15 16" 5.56 Mid-Length Complete Upper, with 15" M-LOK ATLAS R-ONE Handguard - Anodized Black - APSL100731

Aero Precision AR15 16" 5.56 Mid-Length Complete Upper, with 15" M-LOK ATLAS R-ONE Handguard - Anodized Black - APSL100731

$399 99 $549.99
In Stock
Aero Precision M4E1 15" Enhanced M-LOK Complete Upper, 16" 5.56 HBAR CMV Mid-Length Barrel - Anodized Black - APAR600218M97

Aero Precision M4E1 15" Enhanced M-LOK Complete Upper, 16" 5.56 HBAR CMV Mid-Length Barrel - Anodized Black - APAR600218M97
$589 99
In Stock
Only 4 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

$549 99
In Stock
Only 5 Left!
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS R-ONE Handguard - OD Green Anodized - APAR700178M7

Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS R-ONE Handguard - OD Green Anodized - APAR700178M7

$589 99
In Stock
Only 3 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

$589 99
In Stock
Only 2 Left!
Aero Precision AR15 Complete Upper, 20" 5.56 with Pinned FSB & MOE Handguard - FDE - APAR502502M66

Aero Precision AR15 Complete Upper, 20" 5.56 with Pinned FSB & MOE Handguard - FDE - APAR502502M66

$434 99
In Stock
Only 2 Left!
Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

$654 99
In Stock
Only 1 Left!
Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505621

Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505621
$394 99
In Stock
Only 6 Left!
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

$614 99
In Stock
Only 1 Left!
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

$569 99
In Stock
Only 1 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

$449 99
In Stock
Only 3 Left!
Aero Precision AR15 Complete Upper, 20" 5.56 with Pinned FSB & MOE Handguard - Anodized Black - APAR502501M66

Aero Precision AR15 Complete Upper, 20" 5.56 with Pinned FSB & MOE Handguard - Anodized Black - APAR502501M66

$434 99
In Stock
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS R-ONE Handguard - Kodiak Brown Anodized - APAR700401M7

Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS R-ONE Handguard - Kodiak Brown Anodized - APAR700401M7

$589 99
In Stock
Only 4 Left!
Aero Precision M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Quad Rail - Anodized Black - APAR640221Q2

Aero Precision M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Quad Rail - Anodized Black - APAR640221Q2
$534 99
In Stock
Only 5 Left!
Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black - APAR700702M2

Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black - APAR700702M2

$534 99
In Stock
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
Only 3 Left!
Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" ATLAS S-ONE Handguard - Anodized Black - APAR700304M5

Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" ATLAS S-ONE Handguard - Anodized Black - APAR700304M5

$574 99
In Stock
Only 2 Left!
Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE SL Mid-Length - FDE - APAR502506M65

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE SL Mid-Length - FDE - APAR502506M65

$414 99
In Stock
Only 4 Left!
Aero Precision M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver with Pinned FSB and 7" Enhanced M-LOK Handguard - Anodized Black - APAR640211M3

Aero Precision M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver with Pinned FSB and 7" Enhanced M-LOK Handguard - Anodized Black - APAR640211M3
$554 99
In Stock
Only 5 Left!
1-24 of 222 Products
Sort By:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. ...
  7. 10
 
  Loading...