- Type: Semi-Automatic
- Caliber/Gauge: 300 AAC Blackout
- Capacity: 30
- Safety: Dimpled Billet Ambidextrous Selector
- Grip Type: Black Polymer
- Barrel Material: 4140 Chrome Molybdenum Vanadium Steel
- Receiver Material: Forged 7075 T6 Aluminum
- Barrel Finish: Melonite
- Receiver Finish: Type III Anodized
- Frame Finish: Hardcoat Anodized Black
- Barrel Length: 10-1/2"
- Overall Length: 29"
- Barrel Profile: Hbar
- Barrel Thread: 5/8-24
- Twist Rate: 1:8"
- Barrel Extension: M4 Feed Ramps
- Gas System: Pistol Length
- Gas Block Type: .750 Low Profile Gas Block
- Muzzle Device: A2 Flash Hider
- Handguard Type: Free Float
- Handguard Style: M-LOK Thin Rail
- Handguard Length: 10"
- Charging Handle: Mil-Std
- Fire Control Group: Mil-Std
- Buffer Tube: Carbine
- Pistol Brace: SB-Tactical SBA3
- Forward Assist: Yes
- Dust Cover: Yes
- Receiver Style: M4 Mil-Std
- Stock Material: Polymer
- Stock Finish: Black
The Radical Firearms 10-1/2 inches HBAR 300BLK AR Pistol uses MIL-STD Upper and lower receivers along with our 10 inches FCR free float rail system for increased accuracy, keeping your hands cool, and giving you plenty of room for accessories. Starting in 2019 we are excited to be add the SB-Tactical SBA3 5 position adjustable pistol brace line of pistols.