Key Features:
- Manufacturer: Radical Firearms
- Model: RADICAL UPPR 300BLK 10.5" MLOK BLK
- Caliber: 300 Blackout
- Barrel Length: 10.5"
- Finish Color: Black
- Muzzle Thread: 5/8x24
- Twist Rate: 1:8
- Upper Receiver Style: M4 Mil-Std
- Upper Finish: Type III Anodizing
- Free Float Handguard: M-LOK Thin Rail
- Chamber: 300BLK
- Night Sights: No
- External Safety: No
- Threaded Barrel: Yes
- What's In The Box: Complete Upper Assembly
| __Firearm Type | Rifle |
| __Ambidextrous | No |
| __Material | 4140 Chrome Moly Vanadium, 7075 T6 Aluminum |
| __Model | CFU10.5-300HBAR-10RPR |
| __Capacity | NA |
| __Barrel Length | NA |
| __Optic Footprint | NA |
| __Action | NA |
| __Caliber | .300 Blackout |