![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-NEW-CH-OPTION-ADD-ON-OPTIONAL-2024-1000x1000.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/2024%20NOVEMBER%20OPTIONS/0%201%20SIGHTS-OPTIONS-2024-1000x1000.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/2024%20NOVEMBER%20OPTIONS/0%202%20SIGHTS-OPTIONS-2024-1000x1000.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/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-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] 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/2024%20NOVEMBER%20OPTIONS/0%201%20SIGHTS-OPTIONS-2024-800x800.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/2024%20NOVEMBER%20OPTIONS/0%202%20SIGHTS-OPTIONS-2024-800x800.jpg)
- Stock: In Stock
- Model: UPK-46-AR300BLKC
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
Handguard Option
AR-15 10'' Combat ModularM-Lok Handguard "C" Cut - Black
AR-15 12'' Combat ModularM-Lok Handguard "C" Cut - Black
AR-15 10'' M-LokHandguard C Relief Cut - Black
AR-15 12'' M-LokHandguard C Relief Cut - Black
AR-15 10'' M-LOK SuperSlim Free Float Handguard with Steel Barrel Nut - Made in U.S.A
AR-15 12'' M-LOK SuperSlim Free Float Handguard with Steel Barrel Nut - Made in U.S.A
AR-15 10'' Angle CutClamp on M-LOK Handguard - Made in U.S.A
AR-15 12'' Angle CutClamp on M-LOK Handguard - Made in U.S.A