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Stack Assembled Upper Receivers

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Heckler & Koch MR762 A4 Upper Receiver Kit 7.62x51mm 16" Matte Black

Heckler & Koch MR762 A4 Upper Receiver Kit 7.62x51mm 16" Matte Black

$2649 00
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Rise Armament RA6ARCCUGRY18 6mm ARC AR-15 18" Upper Receiver

Rise Armament RA6ARCCUGRY18 6mm ARC AR-15 18" Upper Receiver

$999 00
In Stock
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DPMS Kitty Kat AR-15 Upper, 5.56 NATO, 7.5" Barrel, Black Nitride Finish, 6.5" Quad Rail, DP51655207090.

DPMS Kitty Kat AR-15 Upper, 5.56 NATO, 7.5" Barrel, Black Nitride Finish, 6.5" Quad Rail, DP51655207090.

$415 66
In Stock
Only 2 Left!
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Derya UP-DY9ISL-AG Island Complete Upper, 9mm, 3.86" Barrel, Melonite Finish, Fits DY9 & Glock 19 Gen 4.

Derya UP-DY9ISL-AG Island Complete Upper, 9mm, 3.86" Barrel, Melonite Finish, Fits DY9 & Glock 19 Gen 4.

$317 57
In Stock
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ATI AR-15 .450 Bushmaster 16" Mil-Sport Upper Receiver W/ Keymod Handguard - ATIG15MS450BM

ATI AR-15 .450 Bushmaster 16" Mil-Sport Upper Receiver W/ Keymod Handguard - ATIG15MS450BM

$617 27
In Stock
Only 1 Left!
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TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8" Barrel Black Finish

TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8" Barrel Black Finish

Out of Stock
Aero Precision M4E1 Threaded No FA Complete Upper 16" 5.56 Mid, 15" M-LOK ATLAS S-ONE - Anodized Black - APAR712105M7

Aero Precision M4E1 Threaded No FA Complete Upper 16" 5.56 Mid, 15" M-LOK ATLAS S-ONE - Anodized Black - APAR712105M7

Out of Stock
Aero Precision M5 16" .308 CMV Complete Upper Receiver w/ 15" ATLAS R-ONE Handguard - APAR538705M22

Aero Precision M5 16" .308 CMV Complete Upper Receiver w/ 15" ATLAS R-ONE Handguard - APAR538705M22

Out of Stock
Cobalt Kinetics CK-Pro Upper Receiver Group AR-15 .223 Wylde 13.7" Barrel Black Cerakote Finish

Cobalt Kinetics CK-Pro Upper Receiver Group AR-15 .223 Wylde 13.7" Barrel Black Cerakote Finish

Out of Stock
DPMS Panther Arms Kitty Kat 5.56 NATO 7.5" Upper Receiver Black Nitride

DPMS Panther Arms Kitty Kat 5.56 NATO 7.5" Upper Receiver Black Nitride

Out of Stock
DPMS Kitty Kat C7 AR Upper 300 Blackout 7.5" Black Nitride/Hard Anodized Finish.

DPMS Kitty Kat C7 AR Upper 300 Blackout 7.5" Black Nitride/Hard Anodized Finish.

Out of Stock
Davidson Defense A2 AR-15 Assembled Upper Receiver with Rock River Arms A2 Rear Sight Kit - 35927

Davidson Defense A2 AR-15 Assembled Upper Receiver with Rock River Arms A2 Rear Sight Kit - 35927

Out of Stock
Aero Precision M5 (.308) Enhanced Assembled Upper Receiver - Bordeaux Red Anodized - APAR308766AC

Aero Precision M5 (.308) Enhanced Assembled Upper Receiver - Bordeaux Red Anodized - APAR308766AC

Out of Stock
Aero Precision M5 (.308) Assembled Upper Receiver - OD Green Anodized - APAR308631AC

Aero Precision M5 (.308) Assembled Upper Receiver - OD Green Anodized - APAR308631AC

Out of Stock
Aero Precision M5 (.308) Assembled Upper Receiver - OD Green Cerakote - APAR308720AC

Aero Precision M5 (.308) Assembled Upper Receiver - OD Green Cerakote - APAR308720AC

Out of Stock
Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard -Cerakote FDE - APAR700714M5

Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard -Cerakote FDE - APAR700714M5

Out of Stock
Aero Precision M5 20" .308 CMV Complete Upper Receiver w/ ATLAS R-ONE Handguard - APAR538705M27

Aero Precision M5 20" .308 CMV Complete Upper Receiver w/ ATLAS R-ONE Handguard - APAR538705M27

Out of Stock
Aero Precision M5 22" 6.5 Creedmoor SS Complete Upper Receiver w/ ATLAS R-ONE Handguard - Cerakote FDE - APAR538715M46

Aero Precision M5 22" 6.5 Creedmoor SS Complete Upper Receiver w/ ATLAS R-ONE Handguard - Cerakote FDE - APAR538715M46

Out of Stock
Aero Precision M4E1 Assembled Threaded Upper Receiver, Special Edition: Thunder Ranch FDE Cerakote - APAR700219AC

Aero Precision M4E1 Assembled Threaded Upper Receiver, Special Edition: Thunder Ranch FDE Cerakote - APAR700219AC

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 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7

Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7

Out of Stock
Aero Precision - M4E1 Threaded Assembled Upper - No Forward Assist - FDE Cerakote - APAR712202AC

Aero Precision - M4E1 Threaded Assembled Upper - No Forward Assist - FDE Cerakote - APAR712202AC

Out of Stock
Aero Precision EPC-9 Assembled 9mm Upper Receiver 16" Barrel 15" ATLAS S-ONE Handguard - Anodized Black - APAR620105M87

Aero Precision EPC-9 Assembled 9mm Upper Receiver 16" Barrel 15" ATLAS S-ONE Handguard - Anodized Black - APAR620105M87

Out of Stock
Aero Precision M5 Assembled Upper Receiver .308 18" Barrel 15" ATLAS R-ONE M-LOK Handguard - Anodized Black - APAR538705M25

Aero Precision M5 Assembled Upper Receiver .308 18" Barrel 15" ATLAS R-ONE M-LOK Handguard - Anodized Black - APAR538705M25

Out of Stock
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