![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-163-AR15P/UPK-163-AR15P-1000x1000.png "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-163-AR15P/UPK-163-AR15P-1-1000x1000.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/1-2023%20NEW-BCG-N+BCG-NB-BCG-N-HM+BCG-N2-OPTION-ADD-ON-OPTIONAL-1000x1000.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-1000x1000.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024-01-NEW-SIGHTS%20OPTION-ADD-ON-OPTIONAL-1000x1000.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
-55 %
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-163-AR15P/UPK-163-AR15P-800x800.png "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-163-AR15P/UPK-163-AR15P-1-800x800.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/1-2023%20NEW-BCG-N+BCG-NB-BCG-N-HM+BCG-N2-OPTION-ADD-ON-OPTIONAL-800x800.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-800x800.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
![AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024-01-NEW-SIGHTS%20OPTION-ADD-ON-OPTIONAL-800x800.jpg "AR-15 .223/5.56 5\" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]")
AR-15 .223/5.56 5" BARREL W/ 4'' HANDGUARD | PISTOL UPPER BUILD UPK163 [ASSEMBLED]
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- Stock: In Stock
- Model: UPK-163-AR15P
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$269.99
$599.99
Available Options
COLOR RED | AR-15 MIL-SPEC UPPER RECEIVER | 223UP-RED
CERAKOTE RED | AR-154" COMBAT M-LOK HANDGUARD "C" CUT | FML-4C-RED
CERAKOTE CAMO| AR-15 CHARGINGHANDLE| BLACK AND RED | CH223-RED-CAM
CERAKOTE CAMO| AR-15 EJECTIONPORT COVER | DUST COVER ASSEMBLY| BLACK AND RED | DC223-RED-CAM
FORWARD ASSIST COMPLETE MILSPEC ASSEMBLY | ARFA
.750 LOW PROFILE STEEL GASBLOCK WITH ROLL PINS & WRENCH -BLACK | GB01-B
CERAKOTE BLACK|AR-15/.223/5.56 STAINLESS STEEL 4 PRONG FLASH HIDER MUZZLE BRAKE | MBR4-BLK
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