Radical Firearms RPR 300 Blackout 16" Rifle M-LOK Handguard

The Radical Firearms RPR in 300 Blackout delivers subsonic and supersonic versatility in a reliable direct impingement platform. This rifle combines proven AR-15 ergonomics with the tactical advantages of 300 BLK ballistics for close-quarters effectiveness and suppressor compatibility.

What Makes This Different

The RPR features a properly configured gas system optimized for 300 Blackout's unique pressure curve, ensuring reliable cycling with both subsonic and supersonic ammunition. Unlike standard 5.56 conversions, this rifle maintains consistent ejection patterns and bolt lockback function across the full spectrum of 300 BLK loads. The 16-inch barrel provides complete powder burn for maximum velocity while remaining compact enough for vehicle deployment.

Key Features

• 16-inch 4150 chrome moly vanadium barrel with 1:7 twist rate for heavy projectiles
• 15-inch M-LOK compatible handguard with full-length top rail
• Direct impingement gas system tuned specifically for 300 Blackout pressures
• Mil-spec trigger group with standard AR-15 fire control compatibility
• A2 flash hider with standard 5/8x24 threading for suppressor mounting
• Six-position collapsible stock with commercial buffer tube
• Standard AR-15 magazine compatibility accepts all STANAG patterns

Field performance centers on the 300 Blackout's ability to deliver rifle-level energy in compact packages. Supersonic loads generate 1,900+ fps muzzle velocity for hunting applications out to 200 yards, while subsonic ammunition maintains 1,000+ foot-pounds of energy when suppressed. The properly headspaced barrel chamber ensures consistent accuracy across grain weights from 110 to 220 grains. Weather-resistant Parkerized finish protects all steel components during extended field use.

Technical Specs

• Caliber: 300 AAC Blackout (.300 BLK)
• Barrel Length: 16 inches with 1:7 twist rate
• Overall Length: 32.5-35.5 inches (stock collapsed/extended)
• Weight: 6.8 pounds unloaded
• Handguard: 15-inch M-LOK with aluminum construction
• Gas System: Carbine-length direct impingement
• Thread Pattern: 5/8x24 TPI for muzzle devices
• Magazine Capacity: Accepts standard AR-15 magazines
• Finish: Parkerized steel with anodized aluminum

The RPR represents solid engineering focused on 300 Blackout's specific requirements rather than generic AR-15 adaptation. Radical Firearms' quality control ensures consistent headspace and proper gas port sizing for reliable function. This configuration handles both tactical applications and hunting scenarios where 300 BLK's unique ballistics provide distinct advantages over traditional rifle cartridges.