The Radical Firearms RF-15 is an AR-pattern semi-automatic pistol chambered in .300 AAC Blackout with a 10.5-inch barrel. It has a 30-round capacity and ships with a brace. The finish is Blue/Black. 
 

Key Specifications 

• Brand: Radical Firearms 
• Model: RF-15 
• Caliber: .300 AAC Blackout 
• Action: Semi Auto 
• Capacity: 30 rounds 
• Barrel Length: 10.5 in 
• Color/Finish: Blue/Black 
   

Detailed Features 

• 10.5-inch barrel 
• AR-pattern pistol configuration with brace included 
• 30-round magazine capacity 
• .300 AAC Blackout chambering 
• Blue/Black finish

Owners of the RF-15 in .300 Blackout often pick it for the compact package that the 10.5-inch barrel and brace combination produces. The platform functions reliably with both supersonic and subsonic loads, which is a common reason for choosing the .300 Blackout chambering.

Build quality on Radical Firearms products draws mixed reactions. Most owners report acceptable function out of the box, but finish work and parts tolerances are sometimes noted as less refined than higher-priced AR builders. Trigger feel on the factory unit is adequate but not a selling point.

For the price tier, the RF-15 pistol is generally regarded as a workable entry into the .300 Blackout AR format. Owners who plan to suppress the gun often do so shortly after purchase. The 30-round magazine is a practical inclusion, and the brace makes the pistol designation useful in more carry contexts.