Rock River Arms LAR-15M All Terrain Hunter 450 Bushmaster 16" Rifle

The Rock River Arms LAR-15M All Terrain Hunter delivers the stopping power of 450 Bushmaster in a precision-engineered platform built for serious hunting applications. This rifle combines the proven AR-15 platform with specialized components optimized for medium to large game hunting at extended ranges.

What Makes This Different

Unlike standard AR-15 rifles chambered in smaller calibers, this All Terrain Hunter features a heavy-duty bolt and barrel assembly specifically engineered for the 450 Bushmaster cartridge's substantial pressures and recoil. The 16-inch stainless steel barrel provides optimal velocity while maintaining maneuverability in dense cover. Rock River Arms' proprietary barrel profiling ensures consistent accuracy across temperature ranges, while the integrated muzzle brake reduces felt recoil by approximately 40% compared to standard flash hiders.

Key Features

• 450 Bushmaster chamber delivers 2,200+ ft-lbs energy for ethical medium game harvests
• 16-inch stainless steel barrel with 1:24 twist rate optimized for heavy hunting bullets
• 13-inch M-LOK handguard provides multiple attachment points for bipods and accessories
• Hogue rubber grip ensures positive control in wet conditions and cold weather
• OEM Operator CAR stock adjusts for length of pull from 11.5 to 14.5 inches
• Integrated muzzle brake reduces muzzle rise and follow-up shot times
• 5-round magazine capacity complies with hunting regulations in most states

Field performance centers on the 450 Bushmaster's ability to deliver rifle-like energy at ranges up to 250 yards while maintaining AR-15 platform familiarity. The cartridge excels in dense cover hunting scenarios where quick follow-up shots may be necessary. Weather-resistant finishes on all metal components prevent corrosion during extended outdoor exposure, while the free-floating handguard maintains accuracy as barrel temperature changes throughout the day.

Technical Specs

• Caliber: 450 Bushmaster
• Barrel Length: 16 inches, stainless steel construction
• Overall Length: 32.25 - 35.25 inches (stock collapsed/extended)
• Weight: Approximately 7.8 pounds
• Handguard: 13-inch M-LOK aluminum, free-floating design
• Stock: OEM Operator CAR stock, 6-position adjustable
• Grip: Hogue rubber overmolded grip
• Magazine Capacity: 5 rounds
• Twist Rate: 1:24 inches
• Finish: Black anodized receiver, stainless barrel

This rifle represents a purpose-built solution for hunters requiring AR-15 platform familiarity with substantially more terminal energy than standard intermediate cartridges. The combination of proven components and specialized chambering creates a reliable tool for ethical harvests in challenging conditions.