Radical Firearms 300 Blackout 10.5" HBAR Pistol FP105300HBAR10RPRBMPSB

The Radical Firearms FP105300HBAR10RPRBMPSB delivers reliable 300 Blackout performance in a compact 10.5-inch configuration. This AR-15 pistol platform combines the versatility of 300 Blackout with a heavy barrel profile for enhanced accuracy and heat dissipation. The stabilizing brace configuration provides legal compliance while maintaining maneuverability.

What Makes This Different

The heavy barrel (HBAR) profile sets this pistol apart from standard lightweight configurations by providing superior heat management during rapid fire sequences. While most 300 Blackout pistols prioritize weight reduction, this model balances portability with sustained accuracy performance. The 10.5-inch barrel length optimizes 300 Blackout ballistics, achieving full powder burn while maintaining compact dimensions for close-quarters applications.

Key Features

• 300 Blackout chambering optimized for both supersonic and subsonic ammunition
• 10.5-inch heavy barrel profile for improved accuracy and heat dissipation
• AR-15 platform compatibility with standard magazines and accessories
• Stabilizing brace system for enhanced control and legal compliance
• Mil-spec trigger group and bolt carrier group components
• Picatinny rail system for optics and accessory mounting
• Standard carbine buffer system for reliable cycling

Performance characteristics favor close to medium-range applications where 300 Blackout excels. The heavy barrel maintains accuracy during extended firing sessions while the compact overall length enables use in confined spaces. Suppressor compatibility makes this platform suitable for tactical applications requiring noise reduction. The stabilizing brace provides additional points of contact for improved shot placement.

Technical Specs

• Caliber: 300 AAC Blackout (.300 BLK)
• Barrel Length: 10.5 inches, heavy profile
• Overall Length: Approximately 26-30 inches (depending on brace position)
• Weight: Approximately 6-7 pounds
• Twist Rate: 1:7 or 1:8 inches (optimized for heavy bullets)
• Gas System: Pistol-length gas system
• Magazine Compatibility: Standard AR-15 magazines
• Thread Pitch: 5/8x24 for suppressor attachment
• Finish: Black anodized aluminum receivers
• Manufacturing: Made in USA

Radical Firearms builds this pistol to provide 300 Blackout performance in a legally compliant package. The heavy barrel profile addresses the primary weakness of most pistol-length platforms by maintaining accuracy under stress. This configuration appeals to shooters requiring compact dimensions without sacrificing barrel rigidity.