Radical Firearms RPR .300 AAC Blackout 10.5″ HBAR Pistol
About this product
The Radical Firearms RPR is a compact AR-platform pistol chambered for .300 AAC Blackout, designed for close-quarters use, range work, and compact duty applications where an AR-style pistol is preferred. It pairs a 10.5″ HBAR-contour threaded barrel with a 10″ free-float M-LOK handguard to provide accessory mounting room while keeping overall length compact. Forged 7075 T6 upper and lower receivers with a top Picatinny rail deliver a familiar, durable interface for optics and controls. The pistol uses a pistol-length gas system and ships with an A2 flash hider and a pistol tube buffer assembly.
Key Specifications
- The caliber is .300 AAC Blackout.
- The barrel measures 10.5 inches.
- The twist rate is 1:8.
- The gas system is pistol-length.
- The handguard is a 10-inch free-float M-LOK design.
- The upper receiver is forged 7075 T6.
- The lower receiver is forged 7075 T6.
- The muzzle device is an A2 flash hider.
- The barrel thread pitch is 5/8×24.
- The pistol uses a pistol tube buffer/stock interface.
Purpose-built for shooters who want a compact AR-format pistol in .300 AAC Blackout, this Radical Firearms RPR balances short-barrel handling and accessory capacity without sacrificing standard AR ergonomics. Its forged receivers and free-float M-LOK rail provide a solid foundation for optics and practical additions, making it a versatile choice for range work, compact carry solutions where legal, and precision-oriented short-barrel builds.
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Specs at a glance
Key attributes
| upc | 816903027804 |
| manufacturer | Radical Firearms |
| manufacturer part number | FP10.5-300HBAR-10RPR |
| action | Semi-Auto |
| barrel length | 10.5" |
| caliber/gauge | .300 AAC Blackout |
| capacity | 20 |
| color | Black |
| length | 35.7000 |
| model | RF-15 |
| number of magazines | 1 |
| product type | Pistol |
| shipping weight | 6.7 |
| sights type | NONE |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |