Rock River Arms LAR-15M 300 Blackout 16" Rifle BLK1700DS

The Rock River Arms LAR-15M in 300 AAC Blackout delivers exceptional versatility for both subsonic and supersonic ammunition in a reliable AR-15 platform. This 16-inch rifle excels in applications requiring compact power with reduced noise signature when paired with suppressors.

What Makes This Different

The LAR-15M features Rock River Arms' precision manufacturing standards with a chrome-lined barrel optimized for 300 Blackout ballistics. Unlike standard 5.56 platforms, this rifle handles heavy subsonic rounds and lightweight supersonic loads with equal reliability. The gas system is properly tuned for consistent cycling across the full spectrum of 300 Blackout ammunition weights from 110-grain to 220-grain projectiles.

Key Features

• 16-inch chrome-lined barrel with 1:7 twist rate for optimal 300 Blackout performance
• Forged 7075-T6 aluminum upper and lower receivers with Type III hard coat anodizing
• Mid-length gas system engineered for reliable cycling with subsonic ammunition
• A2 flash hider with standard 5/8x24 threading for suppressor compatibility
• Six-position collapsible stock with commercial buffer tube assembly
• Mil-spec trigger group with standard AR-15 ergonomics and controls
• Picatinny rail gas block and flat-top upper for optics mounting flexibility

This rifle performs consistently in hunting scenarios where quick follow-up shots matter, tactical applications requiring suppressed operation, and recreational shooting with various ammunition types. The 300 Blackout cartridge maintains effectiveness at ranges up to 300 yards with supersonic loads while providing subsonic options for noise-sensitive environments. Weather-resistant finishes and proven AR-15 reliability ensure function in adverse conditions.

Technical Specs

• Caliber: 300 AAC Blackout (7.62x35mm)
• Barrel Length: 16 inches with 1:7 twist rate
• Overall Length: 32.25-35.5 inches (stock collapsed/extended)
• Weight: Approximately 6.5 pounds
• Gas System: Mid-length with low-profile gas block
• Muzzle Threading: 5/8x24 TPI for suppressors and muzzle devices
• Magazine Compatibility: Standard AR-15 magazines
• Finish: Type III hard coat anodized black
• Manufacturing: Made in USA with lifetime warranty

Rock River Arms backs this rifle with proven manufacturing quality and comprehensive warranty coverage. The LAR-15M represents a purpose-built solution for shooters requiring 300 Blackout performance in a reliable, American-made platform.