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5.56x45 AR-15 1:7 Upper Receivers

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Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 Epsilon 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100413

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 Epsilon 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100413
Out of Stock
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

Out of Stock
Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q32

Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q32

Out of Stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 10.3" M-LOK ATLAS R-ONE Handguard - OD Cerakote - APAR700398M29

Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 10.3" M-LOK ATLAS R-ONE Handguard - OD Cerakote - APAR700398M29

Out of Stock
Aero Precision M4E1 Enhanced 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q5

Aero Precision M4E1 Enhanced 14.5" 5.56 Mid-Length Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q5

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard - Magpul OD Cerakote - APAR700402M7

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard - Magpul OD Cerakote - APAR700402M7

Out of Stock
Aero Precision M4E1 Enhanced 8" 5.56 Complete Upper Receiver with 7.3" Enhanced M-LOK Handguard - Cerakote FDE - APAR640270M102

Aero Precision M4E1 Enhanced 8" 5.56 Complete Upper Receiver with 7.3" Enhanced M-LOK Handguard - Cerakote FDE - APAR640270M102

Out of Stock
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Carbine Length Barrel ith/ 10.3" ATLAS R-ONE M-LOK Handguard, VG6 Gamma 556, BREACH CH and 5.56 Black Nitride BCG - APSL100385

Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Carbine Length Barrel ith/ 10.3" ATLAS R-ONE M-LOK Handguard, VG6 Gamma 556, BREACH CH and 5.56 Black Nitride BCG - APSL100385
Out of Stock
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Carbine Length Barrel ith/ 10.3" ATLAS R-ONE M-LOK Handguard, VG6 Epsilon 556, BREACH CH and 5.56 Black Nitride BCG - APSL100423

Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Carbine Length Barrel ith/ 10.3" ATLAS R-ONE M-LOK Handguard, VG6 Epsilon 556, BREACH CH and 5.56 Black Nitride BCG - APSL100423

Out of Stock
Knights 31962 Upper Recver KIT SR15 MOD2 16"

Knights 31962 Upper Recver KIT SR15 MOD2 16"

Out of Stock
Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel with 15" Enhanced M-LOK Handguard, VG6 Gamma 556, BREACH CH and 5.56 Black Nitride BCG - Anodized Black - APSL100391

Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel with 15" Enhanced M-LOK Handguard, VG6 Gamma 556, BREACH CH and 5.56 Black Nitride BCG - Anodized Black - APSL100391

Out of Stock
Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel with 15" Enhanced M-LOK Handguard, VG6 Epsilon 556, BREACH CH and 5.56 Black Nitride BCG - Anodized Black - APSL100425

Aero Precision M4E1 Complete Upper, 16" 5.56 Mid-Length Barrel with 15" Enhanced M-LOK Handguard, VG6 Epsilon 556, BREACH CH and 5.56 Black Nitride BCG - Anodized Black - APSL100425
Out of Stock
Aero Precision AR15 16" 5.56 M4 Carbine Length Complete Upper with M4 Handguard, 5.56 Phosphate BCG & Charging Handle - Anodized Black - APSL100382

Aero Precision AR15 16" 5.56 M4 Carbine Length Complete Upper with M4 Handguard, 5.56 Phosphate BCG & Charging Handle - Anodized Black - APSL100382

Out of Stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver wtih 10.3" M-LOK ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100384

Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver wtih 10.3" M-LOK ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100384

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100388

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100388

Out of Stock
Aero Precision M4E1 Enhanced 12.5" 5.56 Carbine Length Complete Upper w/ 10.7" Enhanced HG, Adjustable Gas Block, VG6 Epsilon 556, BREACH Charging Handle, PRO BCG - Anodized Black - APSL100386

Aero Precision M4E1 Enhanced 12.5" 5.56 Carbine Length Complete Upper w/ 10.7" Enhanced HG, Adjustable Gas Block, VG6 Epsilon 556, BREACH Charging Handle, PRO BCG - Anodized Black - APSL100386

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Cerakote FDE - APSL100389

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard, Adjustable Gas Block, VG6 Epsilon Muzzle Device, BREACH Charging Handle, & PRO Series BCG - Cerakote FDE - APSL100389

Out of Stock
Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Enhanced M-LOK Handguard, Adjustable Gas Block, VG6 Epsilon 556, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100390

Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Enhanced M-LOK Handguard, Adjustable Gas Block, VG6 Epsilon 556, BREACH Charging Handle, & PRO Series BCG - Anodized Black - APSL100390

Out of Stock
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