The Radical Firearms RF-15 .300 Blackout pistol is an 8.5-inch heavy-barrel AR built for close-range work and suppressor use (brand part no. FP85300HBAR7RPRBMSB). Radical Firearms builds it on forged 7075-T6 receivers with a 7-inch RPR free-float rail and a pistol-length gas system tuned for short barrels. A pistol stabilizer in Radical’s BMPSB configuration takes the place of a shoulder stock, and an A2 flash hider tames the muzzle. It is a compact, light .300 Blackout pistol for range use or a suppressor host.

Key Specifications

• The chambering is .300 AAC Blackout, an intermediate cartridge designed for short barrels.
• The barrel is 8.5 inches in a heavy HBAR profile, which adds rigidity and heat tolerance.
• The barrel finish is Melanite, a corrosion-resistant treatment for long service life.
• The gas system is pistol length, tuned for reliable cycling in short-barrel builds.
• The handguard is a 7-inch RPR free-float rail with M-LOK mounting space for lights and accessories.
• The receivers are forged 7075-T6 aluminum, upper and lower, for structural strength and long service life.
• The muzzle device is an A2 flash hider, which reduces visible flash in low light.
• The barrel extension has an M4 feed ramp, which promotes smooth feeding.
• The rear support is a pistol stabilizer in the BMPSB configuration, which Radical describes as a black M-LOK pistol stabilizer setup.

Frequently Asked Questions

Is this an 8.5-inch or a 10.5-inch barrel? This RF-15 has an 8.5-inch barrel. Radical also builds .300 Blackout pistols with 10.5-inch barrels, but this one is the shorter version.

What muzzle device does it have? It has an A2 flash hider, which Radical fits to help reduce visible muzzle flash in low light.

Does it have a stock? No. Radical builds this pistol with a pistol stabilizer in its BMPSB configuration in place of a shoulder stock.

Buy the Radical Firearms RF-15 Pistol, .300 Blackout, 8.5-Inch, 7-Inch RPR, Pistol Stabilizer

The 8.5-inch .300 Blackout is one of the handiest short-barrel AR layouts, and this RF-15 builds it with a free-float rail and a flash hider. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more AR pistols while you are here.