The Radical Firearms 16" HBAR Contour 300BLK AR rifle uses MIL-STD Upper and lower receivers along with our 15" RPR free float rail system for increased accuracy, keeping your hands cool, and giving you plenty of room for accessories.
| FireArm | yes |
| Safety | Selector Switch |
| Barrel Description | Threaded |
| Sights | None |
| Stock Finish Group | Black |
| Metal Finish Group | Blued/Black |
| Barrel Length | 16" |
| Receiver Material | Aluminum |
| Barrel Length Range | 16" to 16.99" |
| Stock Description | B5 Bravo 6 Position |
| Capacity | 30+1 |
| Muzzle | A2 Flash Hider |
| Caliber | 300 Blackout |
| Twist | 1:8" |
