![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/1ac-1000x1000.png)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/2ac-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/3ac-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/4ac-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/AR-300-Blackout-16-Barrel-W-10-12-15-M-LOK-Handguard-Option-Carbine-Upper-Build-U46-ASSEMBLED(2)-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/5ac-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/6ac-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [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 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024-01-NEW-SIGHTS%20OPTION-ADD-ON-OPTIONAL-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20Rifle%20Scope%20Add-on-1000x1000.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-1000x1000.jpg)
-43 %
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/1ac-800x800.png)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/2ac-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/3ac-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/4ac-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/AR-300-Blackout-16-Barrel-W-10-12-15-M-LOK-Handguard-Option-Carbine-Upper-Build-U46-ASSEMBLED(2)-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/5ac-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/6ac-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [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 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024-01-NEW-SIGHTS%20OPTION-ADD-ON-OPTIONAL-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0%202024%20Rifle%20Scope%20Add-on-800x800.jpg)
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED] AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/RIFLE-UPPER-OPTION-PIC/0-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-800x800.jpg)
AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]
We ship fast
Most orders usually ship out fast. Cerakote products may take 5-7 business days to process.
- Stock: In Stock
- Model: UPK-46-AR300BLKC
Product Views: 23067
$279.99
$489.99
Available Options
16" .300 Blackout 1:8 Twist | Pistol Gas
System| Parkerized | Made in U.S.A.
AR-10 .308 A2 Style 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
6.7" Stainless Steel Gas Tube-Pistol Length
FML-R-C- | Handguard Option
AR-15 Combat Modular M-Lok Handguard "C" Cut - Black
FML-TC-R- | Handguard Option
AR-15 M-LOK HANDGUARD C RELIEF CUT - BLACK
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
, BIRDCAGE MUZZLE BRAKE
, 16 INCH
, RIFLE
, 1:8 TWIST
, PARKERIZED
, MADE IN U.S.A
, BCG
, BLACK NITIRIDE
, STOCK
, 6 POSITION BUFFER TUBE