Rock River Arms LAR-15M SOC0820V1 Upper, .458 SOCOM 16″

Description

This is a complete Rock River Arms LAR-15M upper assembly chambered in .458 SOCOM for AR-15 platform rifles. It features a 16-inch chrome moly bull barrel and a 13-inch free-float M-LOK handguard, and it ships with a bolt carrier group and charging handle. The upper uses a forged A4 receiver and is finished in black for a restrained, utilitarian appearance.

Key Specifications

• The caliber is .458 SOCOM.
• The barrel measures 16-inch Chrome Moly bull barrel.
• The barrel material is chrome moly steel.
• The barrel profile is a bull configuration.
• The barrel finish is Black.
• The handguard is a 13-inch RRA lightweight aluminum free-float rail with M-LOK compatibility.
• The muzzle device is an RRA Beast Brake with 5/8×32 threads.
• The upper receiver is a forged A4 design.
• This assembly includes a bolt carrier group and charging handle.
• The product type is Complete upper.

Designed for shooters who need a purpose-built big-bore AR-15 upper, this Rock River Arms assembly combines a heavy-profile chrome moly barrel and a long free-float handguard to support heavy-for-caliber workloads and accessory mounting. The included bolt carrier group and charging handle make it a ready-to-install option for builders wanting a robust .458 SOCOM upper with a practical feature set.