Home /Categories / Upper Receivers

Shop 4,476 Deals on Upper Receivers

Browse Upper Receivers for sale at the lowest prices online.

Stern Defense AR-15 Upper Receiver 9mm 6in Barrel 8in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD8INCHMOD5-KK - Stern Defense

Stern Defense AR-15 Upper Receiver 9mm 6in Barrel 8in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SD HBC Blast Can Black 015-SD8INCHMOD5-KK

$470.45 $387.49

Aero Precision EPC-9 Enhanced Complete Upper Receiver 8.3in 9mm EM-7.3in Handguard Anodized Black - Aero Precision

Aero Precision EPC-9 Enhanced Complete Upper Receiver 8.3in 9mm EM-7.3in Handguard Anodized Black

$505.00 $406.81

Aero Precision EPC-9 Threaded Complete Upper Receiver 11in 9mm w/ ATLAS R-ONE 10.3in Handguard Anodized Black - Aero Precision

Aero Precision EPC-9 Threaded Complete Upper Receiver 11in 9mm w/ ATLAS R-ONE 10.3in Handguard Anodized Black

$550.00 $470.95

Aero Precision M4E1 Assembled Upper Flat Dark Earth .350 Legend 20 Barrel - Aero Precision

Aero Precision M4E1 Assembled Upper Flat Dark Earth .350 Legend 20 Barrel

$790.00 $673.99

Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver 10in 1-7 Twist 5/8x24 Thread ATLAS R-ONE Handguard FDE Cerakote - Aero Precision

Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver 10in 1-7 Twist 5/8x24 Thread ATLAS R-ONE Handguard FDE Cerakote

$655.00 $475.95

Aero Precision EPC-9 Assembled Upper 9mm 11 Barrel No BCG / CH - Aero Precision

Aero Precision EPC-9 Assembled Upper 9mm 11 Barrel No BCG / CH

$605.99 $429.16

Aero Precision EPC-9 Assembled Upper 9mm 16 Barrel No BCG/CH - Aero Precision

Aero Precision EPC-9 Assembled Upper 9mm 16 Barrel No BCG/CH

$661.99 $379.95

Aero Precision EPC-9 Assembled Upper 9mm 5.5 Barrel No BCG/CH - Aero Precision

Aero Precision EPC-9 Assembled Upper 9mm 5.5 Barrel No BCG/CH

$560.99 $378.24

Aero Precision M4E1 Assembled Upper .350 Legend 16 Barrel - Aero Precision

Aero Precision M4E1 Assembled Upper .350 Legend 16 Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Aero Precision M4E1-T Complete Upper 6.5 Grendel 18 Barrel - Aero Precision

Aero Precision M4E1-T Complete Upper 6.5 Grendel 18 Barrel

$730.00 $654.99

Faxon Ascent AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel - Faxon

Faxon Ascent AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Faxon Ascent AR-15 Complete Upper Receiver 5.56x45mm NATO 10.5" Barrel - Faxon

Faxon Ascent AR-15 Complete Upper Receiver 5.56x45mm NATO 10.5" Barrel

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Aero Precision M5E1 Enhanced 18 6.5 Creedmoor Stainless Steel Complete Upper Receiver - Aero Precision

Aero Precision M5E1 Enhanced 18 6.5 Creedmoor Stainless Steel Complete Upper Receiver

$845.00 $665.83

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Anodized Black - Aero Precision

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Anodized Black

$505.00 $431.99

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Flat Dark Earth - Aero Precision

Aero Precision Threaded Upper Receiver M4E1 5.56 11.5 inch Barrel 9 inch M-LOK ATLAS R-ONE Handguard A2 Flash Hider Flat Dark Earth

$540.00 $397.87

Aero Precision M4E1 5.56 Rifle 18 Barrel Complete Upper Receiver - Aero Precision

Aero Precision M4E1 5.56 Rifle 18 Barrel Complete Upper Receiver

$665.00 $524.00

Aero Precision M5E1 6.5 Creedmoor 22 Complete Upper Receiver - Aero Precision

Aero Precision M5E1 6.5 Creedmoor 22 Complete Upper Receiver

$865.00 $681.59

Primary Weapons Systems MK116 MOD 1-M .223 Wylde 16" Barrel Complete Upper, Chrome-Lined Black - M116UA0B - Primary Weapons Systems

Primary Weapons Systems MK116 MOD 1-M .223 Wylde 16" Barrel Complete Upper, Chrome-Lined Black - M116UA0B

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Primary Weapons Systems

Primary Weapons Systems MK111 MOD 2-M .223 Wylde 11.85" Barrel Complete Upper, Black - 182M111UA0B - Primary Weapons Systems

Primary Weapons Systems MK111 MOD 2-M .223 Wylde 11.85" Barrel Complete Upper, Black - 182M111UA0B

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Primary Weapons Systems

Primary Weapons Systems MK111 Mod 1-M 11.85" Upper .223 Wylde M-LOK Rail, Black - Primary Weapons Systems

Primary Weapons Systems MK111 Mod 1-M 11.85" Upper .223 Wylde M-LOK Rail, Black

MAP (Minimum Advertised Price) means this product is for sale at a lower price than what the manufacturer allows advertised.

Primary Weapons Systems

Del-Ton 11.50" Classic Upper 5.56x45mm 1:9 Carbine-Length, Black -

Del-Ton 11.50" Classic Upper 5.56x45mm 1:9 Carbine-Length, Black

$449.99 $306.47

CMMG Resolute 16.10" Upper 8.6 Blackout 1:3 M-LOK Rail Carbine-Length, Armor Black - Cmmg

CMMG Resolute 16.10" Upper 8.6 Blackout 1:3 M-LOK Rail Carbine-Length, Armor Black

$1,099.95 $825.99

Sons of Liberty Gun Works M4-L89 14.50" Upper 5.56x45mm, Black - Sons Of Liberty Gun Works

Sons of Liberty Gun Works M4-L89 14.50" Upper 5.56x45mm, Black

$1,375.00 $915.14

Sons Of Liberty Gun Works

Del-Ton M4 Magpul M-LOK Rifle Kit - Del-Ton

Del-Ton M4 Magpul M-LOK Rifle Kit

$544.99 $426.80

19 / 187