![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/0%2024%20UPK-15-AR15C-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/2d-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/3d-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/4d-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/5d-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/f-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/g-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/h-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20BARRELS-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [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 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2025%20MB%20OPTIONS/AR-15%20Muzzle%20Brakes%20Option-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2025%20MB%20OPTIONS/AR-15%20Muzzle%20Brakes%20Option%202-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20Rifle%20Scope%20Add-on-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/0%201%20SIGHTS-OPTIONS-2024-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/0%202%20SIGHTS-OPTIONS-2024-1000x1000.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/AR15-Laser-Bore-Sight-2024-1000x1000.jpg)
-54 %
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/0%2024%20UPK-15-AR15C-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/2d-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/3d-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/4d-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/5d-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/f-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/g-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-15-AR15C/h-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20BARRELS-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [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 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2025%20MB%20OPTIONS/AR-15%20Muzzle%20Brakes%20Option-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2025%20MB%20OPTIONS/AR-15%20Muzzle%20Brakes%20Option%202-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20Rifle%20Scope%20Add-on-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/0%201%20SIGHTS-OPTIONS-2024-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/0%202%20SIGHTS-OPTIONS-2024-800x800.jpg)
![AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED] AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/2024%20NOVEMBER%20OPTIONS/AR15-Laser-Bore-Sight-2024-800x800.jpg)
AR-15 5.56 16'' Barrel W/ 10'' 12'' 15'' Quad Rail Handguard option | Carbine Upper Build UPK15 [ASSEMBLED]
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- Stock: In Stock
- Model: UPK-15-AR15C
Product Views: 169623
$229.99
$499.99
Available Options
FMLUS-D |
Handguard
AR-15 Angle Cut Clamp on M-LOK Handguard | Made in USA| 10" 12" 15"
FFAR-O- | Handguard
AR-15 Extended Length One Piece Free Float Handguard| 10" 12" 15"
AR-15 1/2x28 Birdcage Muzzle Brake W/Crush Washer
AR-15 Mil-Spec Upper Receiver | Made in U.S.A.
AR-15 Tactical Rifle Charging Handle Assembly
AR-15 Ejection Port Cover | Dust Cover Assembly
Forward Assist Complete Mil-Spec Assembly
Low-Profile Micro Steel AR Gas Block .750-Black Phosphate Finish
9.75" Stainless Steel Gas Tube-Carbine Length
WARNING to California Residents:⚠️ According to California's Proposition 65, some products sold on this website may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Tags:
OUTDOORSPORTSUSA
, 12 INCH HANDGUARD
, FREE FLOAT
, BIRDCAGE MUZZLE BRAKE
, NATO
, 16 INCH BARREL
, 1:8 TWISTM
, PARKERIZED
, CARBINE GAS SYSTEM
, STRIPPED UPPER
, MADE IN U.S.A
, ANODIZED
, BCG
, BLACK NITRIDE
,