Radical Firearms RPR 300 Blackout 16" Carbine

The Radical Firearms RPR 300 Blackout 16" M-LOK Handguard is a mid-length rifle platform engineered for subsonic and supersonic ammunition performance in the 300 Blackout cartridge. This configuration pairs a 16-inch heavy profile barrel with free-floating design principles, delivering inherent accuracy suitable for both suppressed operations and duty applications. The M-LOK modular handguard system provides tools-free attachment points for tactical accessories, optics mounting solutions, and auxiliary equipment common to modern carbine builds.

The 300 Blackout cartridge excels in suppressed fire scenarios where subsonic velocities maintain bullet stability while minimizing sound signature—a critical advantage in tactical, training, and specialty applications. The 16-inch barrel length balances velocity retention with maneuverability in confined spaces, making it practical for vehicle operations, building entries, and range work. At 8 pounds, the complete firearm maintains controllability while preserving the mass needed for reliable cycling across the broad velocity range the 300 Blackout cartridge delivers. The M-LOK handguard standard allows shooters to configure the rifle to specific mission requirements without permanent modifications.

This platform appeals to operators, law enforcement personnel, and serious shooters evaluating the 300 Blackout for specialized roles where conventional 5.56 NATO may be overkill or where suppressed capability is operationally advantageous. The Radical Firearms RPR 300 Blackout rifle serves precision training, duty preparation, and dedicated subsonic load development. Shooters building a second-stage upper receiver or complete rifle system will find this configuration addresses the growing demand for modular, adaptable platforms that function reliably across diverse ammunition specifications and use cases.