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Semi-Auto Upper Receivers

1-24 of 61 Products
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Aero Precision AR-15 M4E1 Builder Set with Lower Receiver, Upper Receiver, & Handguard - Custom Finish
$499 99 $549.99
In Stock
Aero Precision M4E1 Threaded 8" .300 Blackout Complete Upper Receiver w/ ATLAS R-ONE Handguard - Anodized Black - APAR700701M1
$419 99 $534.99
In Stock
Only 4 Left!
Aero Precision M5 (.308) Threaded Assembled Receiver Set - Anodized Black - APCS308159
$249 99 $404.98
In Stock
Only 1 Left!
Aero Precision AR15 Threaded Assembled Receiver Set with Trigger Guard - OD Green Cerakote - APCS100822
$199 99 $304.98
In Stock
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
Only 1 Left!
Aero Precision EPC-9 Builder Set with Lower Receiver, Upper Receiver, & Handguard - Custom Finish
$549 99 $599.99
In Stock
Only 6 Left!
Aero Precision M4E1 Threaded Assembled Receiver Set - Anodized Black - APCS100177
$209 99 $299.98
In Stock
Only 1 Left!
Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7
$429 99 $579.99
In Stock
Only 4 Left!
Aero Precision M4E1 Assembled AR 15 Upper Receiver 5.56x45mm Mid-Length 16" Mid Length Barrel EM-15 Gen 2 M-LOK Handguard Anodized Black - APAR640251M7
$519 99 $589.99
In Stock
Only 1 Left!
Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard -Cerakote FDE - APAR700714M5
$479 99 $609.99
In Stock
Only 2 Left!
Aero Precision M5 22" 6.5 Creedmoor SS Complete Upper Receiver w/ ATLAS S-ONE Handguard - Cerakote FDE - APAR538115M46
$489 99 $814.99
In Stock
Only 3 Left!
Aero Precision M5 22" 6.5 Creedmoor SS Complete Upper Receiver w/ ATLAS R-ONE Handguard - Cerakote FDE - APAR538715M46
$579 99 $814.99
In Stock
Only 2 Left!
Aero Precision M5 (.308) Threaded Assembled Receiver Set - Cerakote FDE - APCS308160
$259 99 $439.98
In Stock
Only 4 Left!
Aero Precision M4E1 Builder Set with 7" ATLAS S-ONE Handguard - Anodized Black - APCS100179
$279 99 $356.97
In Stock
Only 3 Left!
Aero Precision EPC-9 Receiver Set Cerakote FDE - APCS620002
Out of Stock
Nemo Arms BL556RS 556 AR15 Matched Billet Receiver SET
Out of Stock
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
Out of Stock
Aero Precision AR15 Complete Upper with 16" 5.56 Mid-Length Heavy QPQ Barrel & 15" ATLAS R-ONE M-LOK Handguard - OD Green Anodized - BLEM - APSL100479B
Out of Stock
Aero Precision M5E1 Complete Upper, 16" .308 Mid-Length Barrel w/ 15" Enhanced M-LOK Handguard & Adjustable Gas Block - Anodized Black - APSL100619
Out of Stock
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