Rock River Arms LAR-458 Carbine .458 SOCOM 16″ Semi-Auto Rifle – 6-Position Stock, M-LOK Handguard & Beast Brake

The Rock River Arms LAR-458 Carbine delivers serious stopping power in a modern sporting rifle platform chambered in .458 SOCOM — a hard-hitting cartridge purpose-built for maximum terminal performance. Built on RRA’s proven AR-platform, this semi-automatic carbine is engineered for hunters, hog hunters, and big-bore enthusiasts who demand reliability and accuracy from a versatile, field-ready rifle.

At the heart of this build is a 16″ barrel with a 1:14″ rate of twist, optimized specifically for .458 SOCOM projectiles, paired with a low-profile gas block for a clean, streamlined profile. The 13″ M-LOK handguard offers ample rail space for lights, lasers, and accessories, while the RRA Beast Brake (5/8-32 thread) effectively mitigates muzzle rise and felt recoil. A Hogue rubber grip provides a secure, comfortable hold in all conditions.

The RRA 2-Stage Ultra Match Trigger delivers a crisp, consistent break that improves shot-to-shot accuracy — a standout feature that sets this carbine apart from budget-tier alternatives. The RRA 6-Position Operator Stock allows for a customized length of pull, making this rifle adaptable for a wide range of shooters. A 7-round detachable magazine is included.

**Key Specifications:**
– Caliber: .458 SOCOM
– Action: Semi-Automatic
– Barrel Length: 16″
– Overall Length: 37″
– Rate of Twist: 1:14″
– Weight: 7.6 lbs
– Handguard: 13″ M-LOK
– Stock: RRA 6-Position Operator (Black Synthetic)
– Grip: Hogue Rubber
– Muzzle Device: RRA Beast Brake (5/8-32 Thread)
– Trigger: RRA 2-Stage Ultra Match
– Magazine Capacity: 7 Rounds (Detachable)
– Metal Finish: Black
– Sights: None (optics-ready)

⚠️ **Shipping Restrictions:** No direct ship to California, Rhode Island, or Washington. Not available for sale to Illinois residents.

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